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MOT History from tests of diesel MAN UNKNOWNs year 2018

Review the list of common MAN UNKNOWN failures below or to perform a specific mot history check on your MAN then use our popular KnowYourCar service

mot history
Pass percent:81.99%
(The average a diesel MAN UNKNOWN year 2018 passes without issue)
Based on:1,355 MOT Tests
Most common failuresNo# failures
Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))47
Headlamp aim out of alignment39
Windscreen wiper does not clear the windscreen effectively30
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))19
Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))18
Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))14
Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))11
Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))10
Registration plate lamp issues9
Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))9
Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))8
Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))7
Registration plate issues7
Offside Front Coil spring fractured or broken (5.3.1 (b) (i))5
Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))5
Nearside Rear Position lamp not working (4.2.1 (a) (ii))4
Offside Rear Rear fog lamp not working (4.5.1 (a) (ii))4
Offside Headlamp not working on dipped beam (4.1.1 (a) (ii))4
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))4
Oil leaking excessively from engine (8.4.1 (a) (i))4
Parking brake efficiency below requirements (1.4.2 (a) (i))4
Windscreen washer not working 4
Nearside Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))3
Front brake disc in such a condition that it is seriously weakened3
Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a))3
Nearside Side repeater not working (4.4.1 (a) (ii))3
Service brake efficiency below requirements (1.2.2 (a) (i))3
Offside Rear Position lamp not working (4.2.1 (a) (ii))3
Offside Front Service brake excessively binding (1.2.1 (f))3
Nearside Front Brake hose excessively twisted (1.1.12 (b) (ii))2
Nearside Front Upper Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))2
Offside Rear Outline marker lamp not working (4.2.1 (a) (ii))2
Front Headlamp aim unable to be tested (4.1.2 (b))2
Nearside Track rod end ball joint has excessive play (2.1.3 (b) (i))2
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))2
Windscreen in an unacceptable condition (3.2 (c) (i))2
Offside Rear Position lamp showing white light to the rear (4.2.3 (a) (ii))2
Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii))2
Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii))2
Nearside Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))2
Offside Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii))2
Electronic stability control warning lamp indicates a fault (7.12 (e))2
Nearside Front Outer Prop shaft joint constant velocity boot no longer prevents the ingress of dirt (6.1.7 (g) (ii))2
Offside Front Outer Prop shaft joint constant velocity boot no longer prevents the ingress of dirt (6.1.7 (g) (ii))2
Nearside Rear Shock absorbers has a serious fluid leak2
Offside Rear fog lamp not working (4.5.1 (a) (ii))2
Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))2
Offside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i))2
Offside Side repeater not working (4.4.1 (a) (ii))2
Rear fog lamp not working (4.5.1 (a) (ii))2
Nearside Front Upper Outline marker lamp not working (4.2.1 (a) (ii))1
Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii))1
Offside Rear Bumper damaged and likely to cause injury when grazed or contacted osr corner of bumper sharpe edge reqs cover or taping up (6.1.4 (a) (i))1
Exhaust diesel particulate filter shows evidence of tampering. (8.2.2.1 (c))1
Nearside Undertray likely to become detached (6.2.1 (a) (ii))1
Exhaust has a major leak of exhaust gases (6.1.2 (a))1
Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition (8.1.1 (a))1
Nearside Rear Brake disc significantly and obviously worn inner face (1.1.14 (a) (i))1
Offside Rear reflector missing (4.8.2 (a) (ii))1
Nearside Front Suspension arm pin or bush excessively worn Front bush (5.3.4 (a) (i))1
Offside Seat belt likely to become detached in the event of a collision middle (7.1.1 (a) (ii))1
Nearside Front Service brake grabbing severely (1.2.1 (c))1
Nearside Rear Body component damaged and likely to cause injury wheel arch (6.2.1 (a) (i))1
Front Prop shaft flexible coupling excessively deteriorated (6.1.7 (d) (i))1
Rear Position lamp not working Both sides (4.2.1 (a) (ii))1
Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Offside Rear Body component damaged and likely to cause injury lamp (6.2.1 (a) (i))1
Nearside Front Side repeater not working (4.4.1 (a) (ii))1
Nearside Outline marker lamp with a multiple light source more than 1/2 not functioning (4.2.1 (a) (ii))1
Nearside Rear Rear reflector missing in bumper (4.8.2 (a) (ii))1
Offside Rear Rear reflector missing in bumper (4.8.2 (a) (ii))1
Nearside Front Steering rack has excessive free play detected at the steering wheel (steering rack fitted) rack arm (2.3 (a) (i))1
Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii))1
Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt split (6.1.7 (g) (ii))1
Nearside Front Seat belt buckle not functioning as intended (7.1.2 (d))1
Offside Front Seat belt damaged (7.1.2 (b) (i))1
Nearside Front Service brake excessively binding (1.2.1 (f))1
Nearside Rear Parking brake inoperative on one side (1.4.1 (a))1
Nearside Front Windscreen wiper not working (3.4 (a))1
Offside Front Windscreen wiper not working (3.4 (a))1
Prop shaft bearing excessively worn (6.1.7 (b) (i))1
Service brake excessively binding both rear brakes binding (1.2.1 (f))1
Nearside Front Bumper damaged and likely to cause injury when grazed or contacted (6.1.4 (a) (i))1
Offside Front Prop shaft joint constant velocity boot no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Nearside Front Direction indicator light intensity significantly reduced (4.4.3 (a))1
Offside Rear Stop lamp(s) lens defective such that the emitted light is adversely affected (4.3.1 (b) (ii))1
Nearside Front Lower Body panel damaged and likely to cause injury (6.2.1 (a) (i))1
Nearside Front Body panel damaged and likely to cause injury mirror outer casing (6.2.1 (a) (i))1
Nearside Front Side repeater missing (4.4.1 (a) (ii))1
Central Front Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii))1
Nearside Rear Stop lamp(s) lens defective such that the emitted light is adversely affected lens cracked (4.3.1 (b) (ii))1
Offside Body component damaged and likely to cause injury (6.2.1 (a) (i))1
Nearside Seat belt buckle not functioning as intended (7.1.2 (d))1
Central Seat belt buckle not functioning as intended (7.1.2 (d))1
Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Steering rack insecure to the extent there is excessive movement at the mountings (2.1.3 (a) (ii))1
Offside Front Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Nearside Rear Position lamp not working outer (4.2.1 (a) (ii))1
Nearside Front Position lamp not working (4.2.1 (a) (ii))1
Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt both front ball joint rubbers split ns/os (5.3.4 (b) (ii))1
Nearside Front Bumper damaged and likely to cause injury when grazed or contacted nsf bumper/wing damaged (6.1.4 (a) (i))1
Nearside Front Headlamp aim unable to be tested (4.1.2 (b))1
Headlamp aim projected beam image is obviously incorrect both wrong bulbs fitted (4.1.2 (c))1
Offside Front Drivers view of the road through the swept area of the windscreen significantly affected by an obstruction (3.1 (a) (ii))1
Offside Front Windscreen in an unacceptable condition (3.2 (c) (i))1
Front Headlamp aim projected beam image is obviously incorrect led bulbs (4.1.2 (c))1
Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour (8.2.2.2 (d))1
Rear Rear fog lamp not working (4.5.1 (a) (ii))1
Drive belt so worn it is likely to fail Auxilary drive belt fraying 1/2 width (6.1.7 (c) (ii))1
Offside Windscreen damaged and affecting the drivers view of the road (3.2 (a) (ii))1
Nearside Headlamp insecure (4.1.1 (c))1
Offside Outline marker lamp not working (4.2.1 (a) (ii))1
Nearside Rear Upper Outline marker lamp not working (4.2.1 (a) (ii))1
Nearside Front Inner Steering linkage ball joint has excessive play arm (2.1.3 (b) (i))1
Nearside Rear Position lamp has a product on the lens or light source which shows white light to the rear (4.2.3 (b) (ii))1
Central Front Seat belt buckle not functioning as intended central passenger (7.1.2 (d))1
Windscreen damaged and affecting the drivers view of an obligatory external mirror (3.2 (a) (ii))1
Offside Headlamp not working on main beam (4.1.1 (a) (ii))1
Track rod end ball joint has excessive play RACK END (2.1.3 (b) (i))1
Nearside Front Front passenger door cannot be opened from outside the vehicle door handle missing (6.2.3 (a))1
Rear Stop lamp(s) not working (4.3.1 (a) (ii))1
Offside Reversing lamp inoperative (4.6.1 (a))1
Nearside Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii))1
Nearside Outline marker lamp not working (4.2.1 (a) (ii))1
Nearside Rear Position lamp showing white light to the rear (4.2.3 (a) (ii))1
Nearside Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i))1
Offside Front Brake hose excessively twisted (1.1.12 (b) (ii))1
Nearside Stop lamp(s) missing (4.3.1 (a) (ii))1
Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Nearside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt SPLIT (6.1.7 (g) (ii))1
Offside Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt SPLIT (6.1.7 (g) (ii))1
Electronic power steering warning lamp indicates a system malfunction (2.6 (a))1
Front Windscreen wiper not working (3.4 (a))1
Offside Front Headlamp not working on main beam (4.1.1 (a) (ii))1
Brakes imbalanced across an axle1
Nearside Rear Hydraulic brake calliper leaking (1.1.16 (b) (i))1
Rear Bumper insecure (6.1.4 (a) (i))1
Rear fog lamp switch inoperative (4.5.3 (a))1
Nearside Rear Anti-roll bar ball joint excessively worn (5.3.4 (a) (i))1
Central Front Anti-roll bar ball joint excessively worn (5.3.4 (a) (i))1
Front Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Fuel cap/sealing device ineffective (6.1.3 (b) (i))1
Oil leaking excessively from engine engine (8.4.1 (a) (i))1
Offside Front Lower Brake pedal anti-slip provision missing (1.1.2 (c))1
Headlamp levelling device inoperative (4.1.5 (a))1
Nearside Rear Service brake excessively binding (1.2.1 (f))1
Front Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))1
Offside Rear Service brake excessively binding (1.2.1 (f))1
Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt n/s/f outer cv gaiter split badly (6.1.7 (g) (ii))1
Nearside Rear Outline marker lamp missing n/s/r marker light missing (4.2.1 (a) (ii))1
Spare wheel insecure in carrier (6.1.5 (b) (i))1
Horn not working (7.7 (a))1
Nearside Direction indicator light intensity significantly reduced Mirror (4.4.3 (a))1
Nearside Rear Lower Anti-roll bar ball joint excessively worn (5.3.4 (a) (i))1
Nearside Rear Outline marker lamp not working (4.2.1 (a) (ii))1
Offside Front Outline marker lamp not working (4.2.1 (a) (ii))1
Offside Rear Brake hose connection leaking on a hydraulic braking system (1.1.12 (c) (ii))1
Offside Rear Service brake excessively fluctuating (1.2.1 (e))1
Offside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i))1
Headlamp levelling device cannot be operated from the drivers seat (4.1.5 (b))1
Offside Side repeater light intensity significantly reduced (4.4.3 (a))1
Offside Rear Reversing lamp inoperative (4.6.1 (a))1
Nearside Front Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i))1
Offside Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Body component damaged and likely to cause injury rear step (6.2.1 (a) (i))1
Offside Rear Brake lever has restricted free movement caliper (1.1.15 (e))1
Exhaust fumes entering cabin (6.1.2 (b) (i))1
Windscreen wiper not working (3.4 (a))1
Nearside Front Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii))1
Position lamp switch does not operate in accordance with the requirements (4.2.2 (a))1
Rear fog lamp switch not operating in accordance with the requirements (4.5.3 (a))1
Nearside Front Hydraulic brake calliper leaking (1.1.16 (b) (i))1
Front Inner Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Nearside Rear Anti-roll bar linkage ball joint excessively worn (5.3.4 (a) (i))1
Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Rear brake disc in such a condition that it is seriously weakened1
Nearside Front Drive shaft joint excessively worn (6.1.7 (c) (i))1
Anti-lock braking system warning lamp indicates an ABS fault1
Rear Bumper damaged and likely to cause injury when grazed or contacted (6.1.4 (a) (i))1
Offside Front Upper Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Nearside Front Lower Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))1
Offside Oil leaking excessively from engine (8.4.1 (a) (i))1
Nearside Front Service brake excessively binding unable to check wheel brg (1.2.1 (f))1
Offside Front Service brake excessively binding unable to check wheel brg (1.2.1 (f))1
Offside Stop lamp(s) not working (4.3.1 (a) (ii))1
Brake performance unable to be tested (1.2.1 (g))1
Offside Front Lower Suspension arm pin or bush excessively worn lower arm front inner bush (5.3.4 (a) (i))1

We get to these numbers by trawling through over 1 billion MOT test results since 2004 and crunched the numbers. We remove anything to do with Tyres, as they are model independent and group together common non-model specific issues. We are trying to get to a picture of what models have what issues.

Please note: We take the data from the DVSA. This data is raw and can contain typos and spelling mistakes that garages may have entered while recording a MOT result. Specifically miss-match on names of models and makes. We are constantly cleaning the data so bear with the odd issue.

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