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MOT Fail Codes

Failed MOT? Your MOT refusal notice will list the fail codes that explain the different defects found on your vehicle. Here is what those codes mean, the specific defects that can fail a car—and how serious they are.

MOT Fail Code Example

The fail sheet will list the code(s) identifying the defects that cause your vehicle to failed. MOT fail codes are composed of a Section, Subsection, Subject and Defect that explain exactly what is wrong and needs to be addressed so that your car can pass the MOT. For example:

  • Section (e.g., 1. Brakes)
  • Subsection (e.g., 1.1. Brake condition and operation)
  • Subject (e.g., 1.1.13. Brake linings and pads)
  • Defect (e.g., 1.1.13.(a)(i) Brake lining or pad: worn down to wear indicator)

Below you can find all of the MOT fail codes and defects for each of the eleven categories—plus the severity of each (i.e., minor, major or dangerous). The severity is important because a "major" or "dangerous" defect will fail your MOT inspection. Not only that, but having a "dangerous" defect means you can't drive your car until the problem has been fixed.

List of MOT Fail Sheet Codes

Section 0. Identification of the vehicle

The number plate must be checked to ensure it is safely secured to the vehicle and that it is clearly visible—this includes looking for delamination of the number plate which can prevent identification by automatic number plate recognition (ANPR). In addition the tester will ensure that the plate conforms to specified requirements such as spacing between characters and checking the vehicle identification number (VIN) number.

MOT Fail Codes: Section 0. Identification of VehicleSeverity
0.1. Registration plates
(a) Number plate missing or so insecure that it is likely to fall offMajor
(b) Number plate inscription missing or illegibleMajor
(c) Number plate showing an incorrect registrationMajor
(d) Number plate does not conform to the specified requirementsMajor
0.2. Vehicle identification number (VIN)
(a) VIN missing or cannot be foundMajor
(b) VIN incomplete, illegible or obviously falsifiedMajor
(c) More than one different VIN displayedMajor

Section 1. Brakes

Brakes are the 3rd most common reason for MOT failure. If your car fails the MOT on a "Dangerous" category then you will not be able to drive away from the test until the defect has been fixed—and many of the brake fail codes fall into the "Dangerous" category. What's checked? The condition of the brakes (including service, secondary brakes and parking brakes), anti-lock braking system (ABS), electronic braking system (EBS), brake pads, brake fluid, and more are inspected.

MOT Fail Codes: Section 1. BrakesSeverity
1.1. Condition and operation
1.1.1. Service brake pedal or hand lever pivot
(a) Pivot too tightMajor
(b) Excessive wear or free playMajor
1.1.2. Service brake pedal or hand lever condition and travel
(a) Insufficient reserve travelMajor
(b) Service brake control:
(i) not releasing correctlyMinor
(ii) functionality of brakes affectedMajor
(c) Anti-slip provision missing, loose or worn smoothMajor
1.1.3. Air and vacuum systems
(a) Insufficient pressure/vacuum assistance for less than:
(i) four brake applications after the warning device has operated (or gauge shows an unsafe reading)Major
(ii) two brake applications after warning device has operated (or gauge shows an unsafe reading)Dangerous
(b) Time taken to build up air pressure/vacuum to safe working value not in accordance with the requirementsMajor
(c) Repeated operation of any ancillary air or vacuum system completely depletes the stored air or vacuum for the braking systemMajor
(d) Air leak causing a noticeable drop in pressure or audible air leakMajor
(e) External damage likely to affect the function of the braking systemMajor
1.1.4. Low-pressure warning
(a) Low-pressure warning gauge or indicator:
(i) malfunctioning or defectiveMinor
(ii) not identifying low-pressureMajor
1.1.5. Hand operated brake control valve
(a) Control cracked, damaged or excessively wornMajor
(b) Control insecure on valve or valve insecureMajor
(c) Loose connections or leaks in the systemMajor
(d) MalfunctioningMajor
1.1.6. Parking brake lever or control
(a) Ratchet not holding correctlyMajor
(b) Parking brake lever pivot or ratchet mechanism:
(i) obviously wornMinor
(ii) worn to the extent that the brake may inadvertently releaseMajor
(c) Parking brake lever has excessive movement indicating incorrect adjustmentMajor
(d) Parking brake control missing, defective or inoperativeMajor
(e) Electronic parking brake MIL indicates a malfunctionMajor
(f) Parking brake is not capable of being maintained in operation by direct mechanical action only (vehicle first used on or after 1 January 1968)Major
1.1.7. Brake valves
(a) Valve:
(i) damaged or excessive air leakMajor
(ii) leaking such that brake functionality is affectedDangerous
(b) Excessive oil discharge from a compressor or brake valveMinor
(c) Valve insecure or inadequately mountedMajor
(d) Hydraulic fluid:
(i) leak from a brake valveMajor
(ii) leak from a brake valve such that brake functionality is affectedDangerous
1.1.8. Not in use
1.1.9. Pressure storage reservoirs
(a) Reservoir:
(i) has minor damage or corrosionMinor
(ii) heavily damaged, heavily corroded or leakingMajor
(b) Drain device on an air brake system:
(i) operation affectedMinor
(ii) inoperativeMajor
(c) Reservoir insecure or inadequately mountedMajor
1.1.10. Brake servo units and master cylinder (hydraulic systems)
(a) Brake servo:
(i) defective or ineffectiveMajor
(ii) inoperativeDangerous
(b) Master cylinder:
(i) defective but brake still operatingMajor
(ii) leakingDangerous
(c) Master cylinder insecureMajor
(d) Brake fluid:
(i) below minimum markMinor
(ii) significantly below minimum markMajor
(iii) not visibleDangerous
(e) Master cylinder reservoir cap missingMajor
(f) Brake fluid warning light illuminated or defectiveMinor
(g) Incorrect functioning of brake fluid level warning deviceMinor
1.1.11. Rigid brake pipes
(a) Brake pipe is at imminent risk of failure or fractureDangerous
(b) Leaking brake pipe or connection:
(i) on an air brake systemMajor
(ii) on a hydraulic systemDangerous
(c) Brake pipe damaged or excessively corrodedMajor
(d) Brake pipe:
(i) inadequately clipped or supportedMinor
(ii) likely to become detached or damagedMajor
1.1.12. Flexible brake hoses
(a) Brake hose damaged and likely to failDangerous
(b) Flexible brake hose:
(i) slightly damaged, chafed or twistedMinor
(ii) excessively damaged, deteriorated, chafed, twisted or stretchedMajor
(c) Brake hoses or connections leaking on:
(i) air brake systemsMajor
(ii) hydraulic systemsDangerous
(d) Brake hose bulging under pressureMajor
(e) Brake hose porousMajor
(f) Brake hose ferrules:
(i) excessively corrodedMajor
(ii) excessively corroded and likely to failDangerous
1.1.13. Brake linings and pads
(a) Brake lining or pad:
(i) worn down to wear indicatorMajor
(ii) worn below 1.5mmDangerous
(b) Brake lining or pad contaminated with oil, grease etc.Major
(c) Brake lining or pad missing or incorrectly mountedDangerous
1.1.14. Brake discs and drums
(a) Brake disc or drum:
(i) significantly and obviously wornMajor
(ii) insecure, fractured or otherwise likely to failDangerous
(b) Contaminated with oil, grease etc.Major
(c) MissingDangerous
(d) Brake drum back plate insecureMajor
1.1.15. Brake cables, rods, levers and linkages
(a) Cable damaged or knottedMajor
(b) Component excessively worn or corrodedMajor
(c) Cable, rod or joint insecureMajor
(d) Cable guide defective affecting operationMajor
(e) Restriction in free movement of the braking systemMajor
(f) Abnormal movement of levers indicating maladjustment or excessive wearMajor
1.1.16. Brake actuators - including spring brakes, hydraulic cylinders and callipers
(a) Actuator cracked or damaged and:
(i) braking performance not affectedMajor
(ii) braking performance affectedDangerous
(b) Actuator leaking and:
(i) braking performance not affectedMajor
(ii) braking performance affectedDangerous
(c) Actuator insecure or inadequately mounted and:
(i) braking performance not affectedMajor
(ii) braking performance affectedDangerous
(d) Actuator:
(i) excessively corrodedMajor
(ii) excessively corroded and likely to crackDangerous
(e) Actuator has:
(i) excessive travel of operating system indicating need for adjustmentMajor
(ii) no reserve travel and braking performance affectedDangerous
1.1.17. Load sensing valve
(a) Load sensing valve linkage defectiveMajor
(b) Load sensing valve linkage obviously incorrectly adjustedMajor
(c) Load sensing valve seized or inoperative and:
(i) ABS functioningMajor
(ii) ABS not fitted or inoperativeDangerous
(d) Load sensing valve missing where fitted as standardDangerous
1.1.18. Brake slack adjuster
(a) Adjuster damaged, seized or having abnormal movement, excessive wear or incorrect adjustmentMajor
(b) Adjuster defectiveMajor
(c) Incorrectly installedMajor
1.1.19. Additional braking device (retarder), if fitted
(a) Endurance braking system connectors or mountings:
(i) insecureMinor
(ii) insecure and functionality affectedMajor
(b) Endurance braking system obviously defectiveMajor
1.1.20. Not in use
1.1.21. Complete braking system
(a) Other braking system (e.g. antifreeze pump, air dryer etc.) component damaged or corroded:
(i) to the extent that the braking system is adversely affectedMajor
(ii) leaking and system functionality adversely affectedDangerous
(b) Air or antifreeze:
(i) leakingMinor
(ii) to the extent that braking performance is affectedMajor
(c) Any component insecure or inadequately mountedMajor
(d) Braking system component modification:
(i) unsafeMajor
(ii) adversely affecting braking performanceDangerous
(e) The strength or continuity of the load bearing structure within 30cm of any braking system actuation component mounting (a prescribed area):
(i) is significantly reduced (see Appendix A)Major
(ii) is so weakened that the functionality of the braking system is affectedDangerous
1.2. Service brake performance and efficiency
1.2.1. Performance
(a) Braking effort:
(i) inadequate at a wheelMajor
(ii) not recording at a wheelDangerous
(b) Brakes imbalance across an axle such that:
(i) the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle. Or in the case of testing on the road, the vehicle deviates excessively from a straight lineMajor
(ii) the braking effort from any wheel is less than 50% of the maximum effort recorded from the other wheel on a steered axleDangerous
(c) A brake on any wheel grabbing severelyMajor
(d) Abnormal lag in brake operation on a wheelMajor
(e) Excessive fluctuation in brake effort through each wheel revolutionMajor
(f) Significant brake effort recorded with no brake applied indicating a binding brakeMajor
(g) Brake performance unable to be testedMajor
1.2.2. Efficiency
(a) Service brake efficiency:
(i) below minimum requirementMajor
(ii) less than 50% of the required valueDangerous
1.3. Secondary brake performance and efficiency
1.3.1. Performance
(a) Braking effort:
(i) inadequate at any wheelMajor
(ii) not recording at any wheelDangerous
(b) Brakes imbalance across an axle such that:
(i) the braking effort from any wheel is less than 70% of the maximum effort recorded from the other wheel on the same axle. Or in the case of testing on the road, the vehicle deviates excessively from a straight line.Major
(ii) the braking effort from any wheel is less than 50% of the maximum effort recorded from the other wheel on a steered axleDangerous
(c) A brake on any wheel grabbing severelyMajor
1.3.2. Efficiency
(a) Parking brake efficiency:
(i) below minimum requirementMajor
(ii) less than 50% of the required valueDangerous
1.4. Parking brake performance and efficiency
1.4.1. Performance
(a) Parking brake inoperative on one side, or in the case of testing on the road, the vehicle deviates excessively from a straight lineMajor
1.4.2. Efficiency
(a) Parking brake efficiency:
(i) below minimum requirementMajor
(ii) less than 50% of the required valueDangerous
1.5. Additional braking device (retarder) performance
(a) Control for electronic retarder does not allow gradual variation in effortMajor
(b) System obviously inoperativeMajor
1.6. Anti-lock braking system (ABS)
(a) Warning device not workingMajor
(b) Warning device shows system malfunctionMajor
(c) Wheel speed sensors missing or damagedMajor
(d) Wiring damagedMajor
(e) Other components missing or damagedMajor
1.7. Electronic braking system (EBS)
(a) Warning device not workingMajor
(b) Warning device shows system malfunctionMajor
1.8. Brake fluid
(a) Brake fluid contaminatedMajor

Section 2. Steering

The steering section of the MOT test checks the steering wheel and column (or handlebar, forks and yokes for a motorcycle), steering play and electronic power steering (EPS) and general mechanical condition of the steering gear.

MOT Fail Codes: 2. SteeringSeverity
2.1. Mechanical condition
2.1.1. Steering gear condition
(a) Excessive roughness in operation of steeringMajor
(b) Sector shaft:
(i) twisted or splines excessively wornMajor
(ii) twisted or splines worn to the extent that functionality is affectedDangerous
(c) Sector shaft:
(i) excessively wornMajor
(ii) worn to the extent that functionality is affectedDangerous
(d) Sector shaft:
(i) has excessive movementMajor
(ii) movement so excessive that functionality is affectedDangerous
(e) Steering box:
(i) leaking oilMinor
(ii) leaking to the extent that oil is drippingMajor
2.1.2. Steering gear security
(a) Steering gear casing:
(i) not properly attachedMajor
(ii) retaining devices dangerously loose or relative movement to chassis/bodywork visibleDangerous
(b) Steering gear casing fixing holes in chassis:
(i) elongatedMajor
(ii) elongated to the extent that attachment is seriously affectedDangerous
(c) Steering gear fixing bolts:
(i) missing or ineffectiveMajor
(ii) missing or ineffective to the extent that attachment is seriously affectedDangerous
(d) Steering gear casing:
(i) fracturedMajor
(ii) fractured and stability or attachment of casing affectedDangerous
(e) The strength or continuity of the load bearing structure within 30cm of any steering component mounting (a ‘prescribed area’):
(i) is significantly reduced or inadequately repaired
(ii) is so weakened that control of the vehicle is likely to be adversely affectedMajor
Dangerous
2.1.3. Steering linkage condition
(a) A steering linkage component with:
(i) relative movement between components which should be fixedMajor
(ii) excessive movement between components or likely to become detachedDangerous
(b) A steering ball joint:
(i) with excessive wear or free playMajor
(ii) worn to the extent there is a serious risk of detachmentDangerous
(c) A steering linkage component:
(i) fractured or deformedMajor
(ii) fractured or deformed to the extent that steering is affectedDangerous
(d) Steering linkage retaining or locking device missing or ineffectiveMajor
(e) Track rod or drag link ends seriously misalignedMajor
(f) A steering linkage component:
(i) with an unsafe modificationMajor
(ii) modified to the extent that steering is affectedDangerous
(g) Steering rack gaiter or ball joint dust cover:
(i) damaged or deterioratedMinor
(ii) missing or no longer prevents the ingress of dirt etc.Major
2.1.4. Steering linkage operation
(a) Steering linkage fouling any part of the vehicleMajor
(b) Steering lock-stop missing or incorrectly adjustedMajor
2.1.5. Power steering
(a) Power steering fluid leaking or system malfunctioningMajor
(b) Power steering fluid:
(i) level below minimum markMinor
(ii) reservoir emptyMajor
(c) Power steering:
(i) inoperativeMajor
(ii) inoperative and steering adversely affectedDangerous
(d) Power steering component:
(i) fractured or insecureMajor
(ii) fractured or insecure and steering adversely affectedDangerous
(e) Power steering component:
(i) fouling or misalignedMajor
(ii) fouling or misaligned and steering adversely affectedDangerous
(f) Power steering component:
(i) with an unsafe modificationMajor
(ii) modified and steering adversely affectedDangerous
(g) Power steering pipe, hose or wiring:
(i) excessively damaged or corrodedMajor
(ii) damaged or corroded and steering adversely affectedDangerous
2.2. Steering wheel and column or handlebar, forks and yokes
2.2.1. Steering wheel or handlebar condition
(a) Relative movement between steering wheel and column:
(i) indicating loosenessMajor
(ii) such that there is a serious risk of detachmentDangerous
(b) Steering wheel:
(i) retaining device missingMajor
(ii) likely to become detachedDangerous
(c) Steering wheel rim or spokes:
(i) fractured or looseMajor
(ii) likely to become detachedDangerous
(d) Handlebar:
(i) fractured or insecureMajor
(ii) fractured or insecure to the extent that steering is adversely affected or detachment likelyDangerous
(e) Handlebar:
(i) excessively deformed or corrodedMajor
(ii) deformed or corroded to the extent that steering is adversely affected or failure likelyDangerous
(f) Handlebar handgrips:
(i) missingMajor
(ii) insecure to handlebarDangerous
2.2.2. Steering column or forks and yokes
(a) Excessive movement of centre of steering wheel up or downMajor
(b) Excessive radial movement between the top of the steering column and the shaft indicating an excessively worn top bearingMajor
(c) Excessive wear or play in a universal joint or a flexible coupling excessively deterioratedMajor
(d) Attachment of steering column:
(i) defectiveMajor
(ii) defective to the extent that there is a serious risk of detachmentDangerous
(e) Unsafe modification to steering column, forks or fork yokeMajor
(f) Forks or fork yoke:
(i) deformed, fractured or insecureMajor
(ii) in such a condition that steering control is adversely affected or detachment likelyDangerous
(g) Steering head bearings have excessive wear or playMajor
2.3. Steering play
(a) Free play in the steering, measured at the rim of the steering wheel is:
(i) excessiveMajor
(ii) excessive to the extent that safe steering is affectedDangerous
2.6. Electronic power steering (EPS)
(a) EPS MIL indicating a system malfunctionMajor
(b) On ‘fly by wire systems’, the angle of the steering wheel and the angle of the road wheels is:
(i) inconsistentMajor
(ii) inconsistent to the extent that the steering is adversely affectedDangerous
(c) Electronic power assistance not workingMajor

Section 3. Visibility

Visibility fails account for around 8% of car MOT fails. The inspection checks the field of vision for the driver, as well as bonnet catches, the condition of the glass, the rear view, windscreen wipers and washers. Major fails include a windscreen blade being missing or obviously not clearing the windscreen. Cracks can count as a Major or Dangerous fail if the damage in front of the driver is more than 10mm in diameter, or more than 40mm in the rest of the windscreen’s swept area.

MOT Fail Codes: Section 3. VisibilitySeverity
3.1. Field of vision
(a) An obstruction:
(i) within the driver’s field of view that materially affects his view in front or to the sides outside the swept area of windscreenMinor
(ii) materially affecting the driver’s view of the road through the swept area of the windscreen or an obligatory external mirror not visibleMajor
(b) A bonnet:
(i) which cannot be safely secured in the closed positionMajor
(ii) seriously at risk of opening inadvertentlyDangerous
(c) A bonnet primary retaining device excessively deteriorated, ineffective or insecureMajor
3.2. Condition of glass
(a) Windscreen or window damaged or seriously discoloured:
(i) but not adversely affecting driver’s viewMinor
(ii) and affecting the driver’s view of the road or of an obligatory external mirrorMajor
(b) Windscreen or window excessively tinted:
(i) but not adversely affecting driver’s viewMinor
(ii) and visibility through swept area of windscreen or of an obligatory external mirror seriously affectedMajor
(c) Windscreen or window:
(i) in an unacceptable condition e.g. due to excessive scratchingMajor
(ii) in such a condition that visibility through swept area is seriously affectedDangerous
(d) The windscreen or a window wholly or partly on either side of the driver’s seat is not made from safety glassMajor
(e) A window not wholly or partly on either side of the driver’s seat is not made from safety glass or safety glazingMajor
3.3. View to rear
(a) Obligatory mirror or device missingMajor
(b) Obligatory mirror or device:
(i) slightly damaged or looseMinor
(ii) inoperative, excessively damaged or insecureMajor
(c) Obligatory mirror or device not providing an adequate view to the rearMajor
3.4. Windscreen wipers
(a) Wiper not operating or missingMajor
(b) Wiper blade:
(i) defectiveMinor
(ii) missing or obviously not clearing the windscreenMajor
3.5. Windscreen washers
(a) Windscreen washers not working or not providing sufficient fluid to clear the windscreenMajor

Section 4. Lamps, reflectors and electrical equipment

Section 4. Lamps, reflectors and electrical equipment is the number 1 reason for failed MOT tests. This large category encompasses headlamps, daytime running lamps, brake lights, indicators, hazard warning lamps, fog lamps, reversing lamps, trailer electrical sockets, electrical wiring and batteries. Bulbs are prone to burning out, fuses are prone to blowing and electrics are notoriously delicate, especially in newer cars that have sophisticated electrical systems where lots can go wrong.

MOT Fail Codes: Section 4. Lamps, reflectors and electrical equipmentSeverity
4.1. Headlamps
4.1.1. Presence, condition and operation
(a) A headlamp:
(i) with up to ½ light sources not functioning in the case of LEDMinor
(ii) missing, inoperative or more than ½ not functioning in the case of LEDMajor
(b) Headlamp reflector or lens:
(i) slightly defectiveMinor
(ii) seriously defective or missingMajor
(c) Lamp not securely attachedMajor
4.1.2. Headlamp alignment
(a) The aim of a headlamp is not within limits laid down in the requirementsMajor
(b) Headlamp aim unable to be testedMajor
(c) Beam image obviously incorrectMajor
4.1.3. Switching
(a) Headlamp ‘on’ switch does not operate in accordance with the requirementsMinor
(b) Headlamp ‘dip’ switch does not operate in accordance with the requirementsMajor
4.1.4. Compliance with requirements
(a) Headlamp emitted colour, position or intensity not in accordance with the requirementsMajor
(b) Product on the lens or light source which obviously reduces light intensity or changes emitted colour to other than white or yellowMajor
(c) Light source and lamp not compatibleMajor
(d) Mandatory headlamps, intended to be a matched pair, are not the same shape, size or colourMajor
4.1.5. Levelling devices
(a) Headlamp levelling device inoperativeMajor
(b) Manual levelling device cannot be operated from the driver’s seatMajor
4.1.6. Headlamp cleaning devices
(a) Headlamp cleaning device:
(i) inoperativeMinor
(ii) inoperative in the case of LED or gas discharge systems (HID)Major
4.2. Front and rear position lamps, daytime running lamps and end-outline marker lamps
4.2.1. Presence, condition and operation
(a) Lamp:
(i) multiple light source up to a half not functioningMinor
(ii) missing, inoperative or in the case of a multiple light source more than a half not functioningMajor
(b) Defective lensMajor
(c) Lamp:
(i) not securely attachedMinor
(ii) likely to become detachedMajor
4.2.2. Switching
(a) Switch does not operate in accordance with the requirements or the rear position lamps can be switched off when the headlamps are onMajor
(b) Function of the switch impairedMajor
4.2.3. Compliance with requirements
(a) Lamp:
(i) emitted colour, position or intensity not in accordance with the requirementsMinor
(ii) showing red light to the front, white light to the rear or has heavily reduced light intensityMajor
(b) A lamp with a product on the lens or light source:
(i) which obviously reduces light intensity or changes emitted colourMinor
(ii) which shows red light to the front, white light to the rear or has heavily reduced light intensityMajor
(c) A lamp adversely affected by the operation of any other lampMajor
4.3. Stop lamps
4.3.1. Presence, condition and operation
(a) Stop lamp(s):
(i) with a multiple light source up to 1/2 not functioningMinor
(ii) missing, inoperative or in the case of a multiple light source more than 1/2 not functioningMajor
(iii) all missing or inoperativeDangerous
(b) A lens defective:
(i) which has no effect on emitted lightMinor
(ii) such that the emitted light is adversely affectedMajor
(c) A stop lamp:
(i) not securely attachedMinor
(ii) likely to become detachedMajor
4.3.2. Switching
(a) Stop lamp(s):
(i) switch does not operate in accordance with the requirementsMinor
(ii) switch with a delay in operationMajor
(iii) remain on when the brakes are releasedDangerous
4.3.3. Compliance with requirements
(a) A stop lamp:
(i) emitted colour, position or intensity not in accordance with the requirementsMinor
(ii) showing white light to the rear or significantly reduced light intensityMajor
(b) A stop lamp adversely affected by the operation of any other lampMajor
4.4. Direction indicators and hazard warning lamps
4.4.1. Presence, condition and operation
(a) A direction indicator:
(i) lamp with a multiple light source up to 1/2 not functioningMinor
(ii) lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioningMajor
(b) A lens defective:
(i) which has no effect on emitted lightMinor
(ii) such that the emitted light is adversely affectedMajor
(c) A lamp:
(i) not securely attachedMinor
(ii) likely to become detachedMajor
(d) Mandatory hazard warning device not fittedMajor
(e) Mandatory hazard warning device inoperativeMajor
4.4.2. Switching
(a) Indicator or hazard warning switch:
(i) does not operate in accordance with the requirementsMinor
(ii) inoperativeMajor
4.4.3. Compliance with requirements
(a) Lamp emitted colour, position or intensity not in accordance with the requirementsMajor
(b) A direction indicator lamp adversely affected by the operation of any other lampMajor
4.4.4. Flashing frequency
(a) Rate of flashing not between 60 and 120 times per minuteMinor
4.5. Front and rear fog lamps
4.5.1. Presence, condition and operation
(a)
(i) A front or rear fog lamp with a multiple light source up to 1/2 not functioningMinor
(ii) An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioningMajor
(b) A lens defective:
(i) which has no effect on emitted lightMinor
(ii) such that emitted light is adversely affectedMajor
(c) A front or rear fog lamp:
(i) not securely attachedMinor
(ii) likely to become detachedMajor
4.5.2. Not in use
4.5.3. Switching
(a) Front or rear fog lamp switch:
(i) not operating in accordance with the requirementsMinor
(ii) inoperativeMajor
4.5.4. Compliance with requirements
(a) Front or rear fog lamp emitted colour or position not in accordance with the requirementsMajor
(b) A rear fog lamp adversely affected by the operation of any other lampMajor
4.6. Reversing lamps
4.6.1. Condition and operation
(a) A reversing lamp inoperativeMajor
(b) A reversing lamp lens defectiveMajor
(c) A reversing lamp:
(i) not securely attachedMinor
(ii) likely to become detachedMajor
4.6.2. Compliance with requirements
(a) Reversing lamp emitted colour or position not in accordance with the requirementsMajor
4.6.3. Switching
(a) Reversing lamp switch not operating in accordance with the requirementsMajor
4.7. Rear registration plate lamps
4.7.1. Presence, condition and operation
(a) A rear registration plate lamp throwing direct white light to the rearMinor
(b) A rear registration plate lamp or light source missing or inoperative:
(i) when rear registration plate has 2 or more lamps or light sourcesMinor
(ii) when rear registration plate has only one lamp or all lamps not workingMajor
(c) A registration plate lamp:
(i) not securely attachedMinor
(ii) likely to become detachedMajor
4.7.2. Compliance with requirements
(a) Rear registration plate lamp does not illuminate simultaneously with the position lampsMajor
4.8. Rear reflectors
4.8.1. Presence, condition and operation
(a) Reflector defective or damaged:
(i) by up to 50% of the reflecting surfaceMinor
(ii) by more than 50% of the reflecting surfaceMajor
(b) Reflector:
(i) not securely attachedMinor
(ii) likely to become detachedMajor
4.8.2. Compliance with requirements
(a) Reflector:
(i) colour or position not in accordance with the requirementsMinor
(ii) missing or reflecting white to the rearMajor
4.9. ‘Tell-tales’ mandatory for lighting equipment
4.9.1. Presence, condition and operation
(a) A mandatory tell-tale:
(i) for direction indicators or hazard warning missing or inoperativeMinor
(ii) for main beam headlamp or rear fog lamp missing or inoperativeMajor
4.9.2. Compliance with requirements
(a) A hazard warning lamp tell-tale is not a flashing lightMinor
4.10. Trailer electrical socket
(a) A trailer electrical socket:
(i) insecureMinor
(ii) likely to become detachedMajor
(b) Trailer electrical socket wiring:
(i) insulation damaged or deterioratedMinor
(ii) insulation damaged or deteriorated and likely to cause a short-circuitMajor
(c) A 13-pin trailer socket:
(i) not functioning correctlyMajor
(ii) not functioning at allDangerous
4.11. Electrical wiring
(a) Electrical wiring:
(i) insecure or inadequately securedMinor
(ii) insecure and in contact with sharp edges or connectors likely to become disconnectedMajor
(iii) likely to touch hot or rotating parts, drag on the ground or the connectors for braking or steering disconnectedDangerous
(b) Electrical wiring:
(i) slightly deterioratedMinor
(ii) so damaged or deteriorated it is likely to cause a short-circuitMajor
(iii) for braking or steering components extremely deterioratedDangerous
(b) Electrical wiring insulation:
(i) damaged or deterioratedMinor
(ii) heavily deterioratedMajor
(iii) in such a condition there is an imminent risk of fire or formation of sparksDangerous
4.13. Battery(ies)
(a) A battery insecure:
(i) but not likely to fall from carrierMinor
(ii) and likely to fall from carrier or cause a short circuitMajor
(b) A battery leakingMajor

Section 5. Axles, wheels, tyres and suspension

Nearly all defects in Section 5 count as "Major" or "Dangerous" and will fail your car in the MOT inspection. This section covers axles, wheels, wheel bearings, tyres, suspension, springs, etc.

MOT Fail Codes: Section 5. Axles, wheels, tyres and suspensionSeverity
5.1. Axles
5.1.1. Axles
(a) An axle fractured or deformedDangerous
(b) An axle:
(i) insecure or with loose fixing boltsMajor
(ii) insecure such that stability is impaired or functionality affectedDangerous
(c) An axle:
(i) with an unsafe modificationMajor
(ii) modified so that vehicle stability is impaired or axle functionality affectedDangerous
5.1.2. Stub axles
(a) A stub axle fracturedDangerous
(b) A stub axle swivel pin and/or bush:
(i) excessively wornMajor
(ii) is so excessive the stub axle is likely to become insecure or directional stability is impairedDangerous
(c) Movement between the stub axle and axle beam:
(i) is excessiveMajor
(ii) insecure or directional stability is impairedDangerous
(d) A king pin:
(i) loose in the axle beamMajor
(ii) so loose it is likely to affect directional stabilityDangerous
5.1.3. Wheel bearings
(a) A wheel bearing:
(i) with excessive playMajor
(ii) play so excessive it is likely to break up or directional control impairedDangerous
(b) A wheel bearing:
(i) excessively roughMajor
(ii) likely to collapseDangerous
5.2. Wheels and tyres
5.2.1. Road wheel and hub
(a) A wheel:
(i) with a loose or missing wheel nut, bolt or studMajor
(ii) with more than one loose or missing wheel nut, bolt or studDangerous
(b) A spigot mounted wheel hub:
(i) excessively worn or damagedMajor
(ii) worn or damaged to the extent that wheel security is adversely affectedDangerous
5.2.2. Road wheel condition
(a) Any fracture or welding defect on a wheelDangerous
(b) A tyre retaining ring:
(i) not correctly fittedMajor
(ii) likely to come offDangerous
(c) A wheel:
(i) badly distorted or wear between wheel and hub at spigot mountingMajor
(ii) distorted or worn to the extent the wheel or tyre is likely to become detachedDangerous
(d) A wheel and its fixings not compatibleMajor
5.2.3. Tyres
(a) A tyre:
(i) load capacity or speed rating not in accordance with the minimum requirementsMajor
(ii) load capacity insufficient for axle presented weightDangerous
(b) Tyres on the same axle or on twin wheels are different sizesMajor
(c) Tyres on the same axle of different structureMajor
(d) A tyre:
(i) with a cut in excess of the requirements deep enough to reach the ply or cordsMajor
(ii) with a lump, bulge or tear caused by separation or partial failure of its structure, including any lifting of the tread rubber or with cords exposed or damagedDangerous
(e) Tyre tread depth not in accordance with the requirementsDangerous
(f) A tyre fouling a part of the vehicleMajor
(g) A recut tyre fitted to a vehicle not permitted to be fitted with recut tyresMajor
(h) Tyre pressure monitoring system malfunctioning or obviously not workingMajor
(i) A tyre not fitted in compliance with the manufacturer’s sidewall instructionsMajor
(j) A tyre valve seriously damaged or misaligned likely to cause sudden deflation of the tyreDangerous
(k) A tyre incorrectly seated on the wheel rimMajor
(l) Tyre obviously under-inflatedMinor
5.3. Suspension
5.3.1. Springs
(a) A spring:
(i) insecurely attached to chassis or axleMajor
(ii) with fixings loose to the extent that relative movement is visibleDangerous
(b) A spring:
(i) or spring component fractured or seriously weakenedMajor
(ii) main leaf fracturedDangerous
(c) A spring:
(i) missingMajor
(ii) missing and directional control affectedDangerous
(d) A spring:
(i) with an unsafe modificationMajor
(ii) modified so that the suspension is inoperativeDangerous
5.3.2. Shock absorbers
(a) A shock absorber:
(i) insecurely attached to chassis or axleMajor
(ii) missing or likely to become detachedDangerous
(b) A shock absorber damaged to the extent that it does not function or showing signs of severe leakageMajor
(c) A shock absorber bush excessively wornMajor
5.3.3. Suspension arms, rods, struts, sub-frames, anti-roll bars etc.
(a) A suspension component:
(i) insecurely attached to chassis or axleMajor
(ii) missing, likely to become detached or directional stability impairedDangerous
(b) A suspension component:
(i) excessively damaged or corrodedMajor
(ii) fractured or likely to failDangerous
(a) A suspension component:
(i) with an unsafe modificationMajor
(ii) modified so that the suspension is inoperative or likely to foul other componentsDangerous
5.3.4. Suspension joints, pins and bushes
(a) A suspension pin, bush, joint or bearing:
(i) excessively wornMajor
(ii) likely to become detachedDangerous
(b) A suspension joint dust cover:
(i) severely deterioratedMinor
(ii) missing or no longer prevents the ingress of dirt etc.Major
5.3.5. Gas, air and fluid suspension
(a) A gas, air or fluid suspension system inoperativeDangerous
(b) A gas, air or fluid suspension system component damaged, modified or deteriorated in a way that:
(i) it would adversely affect the functioning of the systemMajor
(ii) its function is seriously affectedDangerous
(c) An obvious leak from any part of the systemMajor
5.3.6. Complete suspension system
(a) The strength or continuity of the load bearing structure within 30cm of any sub-frame, spring or suspension component mounting (a ’prescribed area’):
(i) is significantly reduced or inadequately repairedMajor
(ii) is so weakened that control of the vehicle is likely to be adversely affectedDangerous

Section 6. Body, structure and attachments

Section 6 includes checks of some significant structures integral to the safety of your vehicle. Such is the seriousness of this section that a fail in 4 out of 10 defect categories means you can't drive away until the defect is fixed (they are considered "Dangerous" defects). The MOT inspection covers the transmission, driving controls, door catches, coupling mechanisms, fuel system, exhaust system, bumpers, body condition and more.

MOT Fail Codes: Section 6. Body, structure and attachmentsSeverity
6.1. Structure and attachments
6.1.1. General condition
(a) A main load-bearing structural member:
(i) fractured or deformed such that structural rigidity is significantly reducedMajor
(ii) fractured or deformed such that steering or braking is likely to be adversely affectedDangerous
(b) Strengthening plates or fastenings:
(i) insecureMajor
(ii) so insecure that structural rigidity is seriously reducedDangerous
(c) Vehicle structure corroded to the extent that:
(i) the rigidity of the assembly is significantly reducedMajor
(ii) steering or braking is likely to be adversely affectedDangerous
6.1.2. Exhaust system
(a) Exhaust system has a major leak or is insecureMajor
(b) Exhaust fumes:
(i) entering cabinMajor
(ii) causing a danger to health of persons on boardDangerous
6.1.3. Fuel system
(a) Fuel tank, pipe or hose:
(i) insecureMajor
(ii) insecure such that there is a risk of fireDangerous
(b) Fuel system:
(i) leaking, or missing or ineffective filler capMajor
(ii) leaking excessively or a risk of fireDangerous
(c) Fuel pipe or hose:
(i) chafingMinor
(ii) damagedMajor
(d) Not in use
(e) Fire risk due to fuel tank shield or exhaust shield missing where fitted as original equipmentDangerous
(f) Any part of an LPG/CNG/LNG or hydrogen system defectiveDangerous
6.1.4. Bumpers
(a) Bumper:
(i) insecure or with damage likely to cause injury when grazed or contactedMajor
(ii) likely to become detachedDangerous
6.1.5. Spare wheel carrier (if fitted)
(a) A spare wheel carrier fractured or insecureMajor
(b) A spare wheel:
(i) insecure in carrierMajor
(ii) likely to become detachedDangerous
6.1.6. Coupling mechanisms and towing equipment
(a) A towbar component damaged, defective or fracturedMajor
(b) A towbar component:
(i) excessively wornMajor
(ii) so worn it is likely to failDangerous
(c) A towbar attachment:
(i) defective or insecureMajor
(ii) likely to become detachedDangerous
(d) A towbar safety device damaged or not operating correctlyMajor
(e) A towbar coupling indicator not workingMajor
(f) Towbar:
(i) obstructing the registration plate or any lampMinor
(ii) obstructing the registration plate so that it is unreadableMajor
(g) Unsafe modification:
(i) to towbar secondary componentsMajor
(ii) to towbar primary componentsDangerous
(h) Coupling too weakMajor
(i) The strength or continuity of the load bearing structure within 30cm of any towbar mounting bracket:
(i) is significantly reducedMajor
(ii) is so weakened that the towbar is likely to become detachedDangerous
6.1.7. Transmission
(a) A transmission shaft:
(i) securing bolts loose or missingMajor
(ii) likely to become detachedDangerous
(b) A transmission shaft bearing:
(i) excessively wornMajor
(ii) likely to break upDangerous
(c) A transmission:
(i) joint, belt or chain excessively wornMajor
(ii) so worn it is likely to failDangerous
(d) A transmission shaft flexible coupling:
(i) excessively deterioratedMajor
(ii) so deteriorated it is likely to failDangerous
(e) A transmission shaft bent or badly damagedMajor
(f) A transmission shaft bearing housing:
(i) fractured or insecureMajor
(ii) likely to failDangerous
(g) A transmission shaft constant velocity joint boot:
(i) severely deterioratedMinor
(ii) missing, split, insecure or no longer prevents the ingress of dirtMajor
6.1.8. Engine mountings
(a) An engine mounting or bracket:
(i) severely damaged or deteriorated resulting in excessive movementMajor
(ii) fractured, missing or excessively looseDangerous
6.2. Body and interior
6.2.1. Body condition
(a) A body panel or body component:
(i) damaged or corroded and likely to cause injury when grazed or contacted, or insecureMajor
(ii) likely to become detachedDangerous
(b) A body pillar:
(i) insecureMajor
(ii) so insecure that load stability or security likely to be seriously impairedDangerous
(c) The passenger compartment in such a condition that:
(i) it permits the entry of exhaust fumesMajor
(ii) exhaust fumes lead to a danger to health of persons on boardDangerous
(d) Body:
(i) has an unsafe modificationMajor
(ii) modification likely to adversely affect braking or steeringDangerous
(e) A bootlid, tailgate, dropside, loading door or access panel cannot be secured in the closed positionMajor
6.2.2. Cab and body mounting
(a) A body or cab:
(i) insecureMajor
(ii) insecure to the extent that stability is seriously impairedDangerous
(b) A body or cab obviously not squarely located on chassisMajor
(c) Body or cab mounting:
(i) fixings missing or insecure such that overall security is significantly reducedMajor
(ii) fixings missing or insecure such that stability is seriously impairedDangerous
(d) Body, cab or chassis:
(i) excessively corroded at mounting pointsMajor
(ii) corroded at mounting points to the extent that overall security or stability is seriously impairedDangerous
6.2.3. Doors and door catches
(a) A door will not open using the relevant control or close properlyMajor
(b) A door likely to open inadvertently or not remain closed:
(i) in the case of a sliding doorMajor
(ii) in the case of a turning doorDangerous
(c) A door hinge, catch or pillar:
(i) excessively deterioratedMinor
(ii) missing or insecureMajor
6.2.4. Floor
(a) A floor:
(i) excessively deteriorated or insecureMajor
(ii) so deteriorated or insecure it is likely to cause loss of control of the vehicle, injury, load insecurity or instabilityDangerous
6.2.5. Driver’s seat
(a) A driver’s seat:
(i) with a defective structureMajor
(ii) insecureDangerous
(b) A driver’s seat:
(i) fore and aft adjustment mechanism not working as intendedMajor
(ii) seat moving inadvertently or backrest cannot be retained in the upright positionDangerous
6.2.6. Passenger seats
(a) A passenger seat:
(i) with a defective structure or the backrest cannot be retained in the upright positionMajor
(ii) insecureDangerous
6.2.7. Driving controls
(a) A driving control necessary for the safe operation of the vehicle:
(i) not functioning correctlyMajor
(ii) not working or functioning such that safe operation of the vehicle is affectedDangerous
6.2.8. Cab steps (if fitted)
(a) A cab step or step ring:
(i) insecureMinor
(ii) so insecure that it is likely to cause injuryMajor
(b) A cab step or step ring in such a condition that it is likely to cause injuryMajor
6.2.9. Not in use
6.2.10. Not in use
6.2.11. Not in use
6.2.12. Handgrips and footrests
(a) A handgrip or footrest missing or insecureMajor

Section 7. Other equipment

Section 7 captures the horn, speedometer, airbags, anti-theft devices and the condition and security of seat belts (seat belts are also checked as part of Section 10).

MOT Fail Codes: Section 7. Other equipmentSeverity
7.1. Seat belts and supplementary restraint systems (SRS)
7.1.1. Seat belt security
(a) The strength or continuity of the load bearing structure within 30cm of any seat belt anchorage (a ’prescribed area’):
(i) is significantly reduced or inadequately repairedMajor
(ii) anchorage likely to become detached in the event of a collisionDangerous
(b) Seat belt anchorage looseMajor
7.1.2. Seat belt fitment and condition
(a) A statutory seat belt missingMajor
(b) A seat belt:
(i) or flexible stalk damagedMajor
(ii) webbing or flexible stalk significantly stretched or weakenedDangerous
(c) Seat belt not functioning as intended or of an incorrect typeMajor
(d) Seat belt buckle missing, damaged or not functioning as intendedMajor
(e) Seat belt retractor not functioning as intendedMajor
7.1.3. Seat belt load limiters
(a) A seat belt load limiter fitted as original equipment obviously missing or a folded webbing type load limiter deployedMajor
7.1.4. Seat belt pre-tensioners
(a) A seat belt pre-tensioner fitted as original equipment obviously missing or deployedMajor
7.1.5. Airbags
(a) An airbag fitted as original equipment obviously missingMajor
(b) Not in use
(c) An airbag obviously inoperativeMajor
7.1.6. Supplementary restraint system (SRS)
(a) An SRS malfunction indicator lamp (MIL) indicates a system malfunctionMajor
7.3. Anti-theft device
(a) Steering lock missing or not functioningMinor
(b) Steering lock inadvertently engagingDangerous
7.7. Audible warning (horn)
(a) Audible warning:
(i) not working properlyMinor
(ii) inoperativeMajor
(b) Audible warning control insecureMinor
(c) Audible warning not in accordance with requirementsMajor
7.8. Speedometer
(a) Speedometer not fitted where one is requiredMajor
(b) Speedometer:
(i) operation impairedMinor
(ii) not workingMajor
(c) Speedometer:
(i) not sufficiently illuminatedMinor
(ii) not illuminatedMajor
7.10. Speed limiter (if required)
(a) Speed limiter not fitted in accordance with the requirementsMajor
(b) Speed limiter obviously not operationalMajor
(c) Speed limiter with an incorrect set speedMajor
(d) Speed limiter tamperproof device missing or defectiveMajor
(e) Speed limiter plate missing or illegibleMajor
7.12. Electronic stability control (ESC)
(a) Wheel speed sensors missing or damagedMajor
(b) ESC wiring damagedMajor
(c) Other ESC component missing or damagedMajor
(d) ESC switch damaged or not functioning correctlyMajor
(e) ESC MIL indicates a system malfunctionMajor

Section 8. Nuisance

The MOT inspection includes rules for noise, exhaust emissions, engine malfunction indicator lamp (MIL) and fluid leaks. All defects in this category count as "Major" or "Dangerous" and will trigger an MOT fail.

MOT Fail Codes: Section 8. NuisanceSeverity
8.1. Noise
8.1.1. Noise suppression system
(a) Exhaust noise levels in excess of those permittedMajor
(b) Any part of the noise suppression system:
(i) insecureMajor
(ii) likely to become detachedDangerous
8.2. Exhaust emissions
8.2.1. Spark ignition engine emissions
8.2.1.1. Exhaust emission control equipment
(a) Emission control equipment fitted by the manufacturer: missing, obviously modified or obviously defectiveMajor
(b) An induction or exhaust leak that could affect emissions levelsMajor
8.2.1.2. Gaseous emissions
(a) Emissions levels exceed the manufacturer’s specified limitsMajor
(b) Emissions levels exceed default limitsMajor
(c) Lambda coefficient outside the default limits or the range specified by the manufacturerMajor
(d) Emissions test unable to be completedMajor
(e) Engine is idling clearly above its normal idle speedMajor
(f) Exhaust emits dense blue or clearly visible black smoke for a continuous period of 5 seconds at idleMajor
(g) Exhaust emits excessive dense blue or clearly visible black smoke during acceleration which would obscure the view of other road usersMajor
(h) Engine MIL inoperative or indicating a malfunctionMajor
8.2.2. Compression ignition engine emissions
8.2.2.1. Exhaust emission control equipment
(a) Emission control equipment fitted by the manufacturer missing, obviously modified or obviously defectiveMajor
(b) An induction or exhaust leak that could affect emissions levelsMajor
(c) Evidence that the diesel particulate filter has been tampered withMajor
8.2.2.2. Opacity
(a) Smoke opacity levels exceed the manufacturer’s specified limitMajor
(b) Smoke opacity levels exceed default limitMajor
(c) Exhaust emits excessive smoke or vapour of any colour to an extent likely to obscure the vision of other road usersDangerous
(d) Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colourMajor
(e) Emissions test unable to be completedMajor
(f) Emissions test not completed because smoke levels are significantly in excess of the specified limit valuesMajor
(g) Engine MIL inoperative or indicating a malfunctionMajor
8.3. Not in use
8.4. Other environmental items
8.4.1. Fluid leaks
(a) Fluid:
(i) leaking excessively and likely to harm the environment or to pose a safety risk to other road usersMajor
(ii) leaking continuously and likely to pose a serious risk to road safetyDangerous

Section 9. Supplementary tests for buses and coaches

On buses and coaches, there are additional MOT checks regarding the security of grab handles, properly working doors, emergency exits, etc.

MOT Fail Codes: Section 9. Supplementary tests for buses and coachesSeverity
9.1. Doors
9.1.1. Entrance and exit doors
(a) An entrance or exit door defective in operationMajor
(b) An entrance or exit door:
(i) excessively deterioratedMinor
(ii) deteriorated and likely to cause injuryMajor
(c) An entrance or exit door emergency control inoperativeMajor
(d) An entrance or exit door remote control or warning device inoperativeMajor
9.1.2. Emergency exits
(a) An emergency exit defective in operationMajor
(b) An emergency exit sign:
(i) illegible or not in accordance with the requirementsMinor
(ii) missingMajor
(c) Missing break glass hammer (where required)Minor
(d) No emergency exit provided (where one is required) or access blockedMajor
9.2. Not in use
9.3. Not in use
9.4. Not in use
9.5. Not in use
9.6. Passenger grab handles
(a) Not in use
(b) A passenger grab handle:
(i) defectiveMinor
(ii) insecure or unusableMajor
9.7. Steps and stairs
(a) A step or stair:
(i) in a deteriorated conditionMinor
(ii) significantly damagedMajor
(iii) in such a condition as to affect the stability of passengers during useDangerous
(b) A retractable step not operating correctlyMajor

Section 10. Seat belt installation checks

The correct number of seat belts will be checked, as will the bolts and anchorages, condition of the webbing—fraying or cut webbing can be reasons for a failure (e.g., a seat belt chewed by a puppy)—etc.

MOT Fail Codes: Section 10. Seat belt installation checksSeverity
10.1. Seat belt installation requirements (Class 4A & 5A approved VTS only)
10.2. Seat belt installation guidance notes
(a) Evidence that original webbing has been cut and/or reworked; eg belts knotted, fraying or fluffing removed/ sealed by burning etc (see note A)Major
(b) Any part of the installation which has a sharp edge which could or is likely to cut or abrade the webbingMajor
(c) A directly attached anchorage not secured by standard seat belt mounting bolts and washers as detailed in note DMajor
(d) An anchorage insecureMajor
(e) A tubular seat frame that has been drilled for the purpose of attaching a seat belt (see note F)Major
(f) A directly attached anchorage not attached to a load bearing member or without suitable reinforcement (see notes I, N and O)Major
(g) Retro-fitted three point belt which is not mounted on a suitable structure (see Diagram 5)Major
(h) Tubular frame legs or tubular “H” pattern legs which have not been reinforced with buttressing and diagonal bracing (see Diagram 6), or buttressing where a floor mounted belt is fitted close to a seat legMajor
(i) Retro-fitted three point belt fitted to a seat on which the leg and frame has not been suitably modified (see note K)Major
(j) Rail or other harsh object without suitable padding as required at note M)Major
(k) Lower anchorage’s less than 320mm apart (see note P)Major
(l) In such a position that loading the belt causes the cushion to be raised or significantly compressed thus allowing the occupant effectively to move forwardMajor
(m) An anchorage attached to the floor without reinforcement plates of a suitable size and contour (see notes N and O)Major
(n) With load spreading washer(s) missing from anchorage boltMajor
(o) Claw type seat mounting with inadequate means of securing claw (see note P)Major
(p) On a seat fitted to a flat rail the bolt does not pass through the leg, rail, floor, and a suitable structural member, or the floor has not been suitably reinforcedMajor
(q) Tracking for seats and wheelchairs insecure (see note R)Major
(r) Free movement for a looped belt more than 25mm at the anchorageMajor
(s) Upper anchorage of three point belt less than 475mm above uncompressed seat cushion measured parallel to the seat back (see note T)Major
(t) Upper anchorage of three point belt(s) less than 110mm from centre line of seat (see note T)Major
(u) Incorrect positioning of a lap belt or lap section of a three point belt, ie the belt lies across the stomach or forward of the top quarter of the thighMajor
(v) A seat belt component fitted to a seat significantly intrudes into a gangway and is likely to cause injury to a passengerMajor

When you take into account all that has to be checked to ensure a vehicle is road worthy, it almost why you wonder why the cost of an MOT isn't higher.

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