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MOT History from tests of diesel MERCEDES BENZ UNKNOWNs year 2016

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

mot history
Pass percent:83.41%
(The average a diesel MERCEDES BENZ UNKNOWN year 2016 passes without issue)
Based on:862 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment22
Parking brake efficiency below requirements (1.4.2 (a) (i))19
Windscreen wiper does not clear the windscreen effectively18
Brake pipe excessively corroded10
Registration plate issues7
Registration plate lamp issues7
Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g))6
Front brake disc in such a condition that it is seriously weakened4
Anti-lock braking system warning lamp indicates an ABS fault3
Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii))3
Nearside Front Position lamp not working (4.2.1 (a) (ii))3
Brakes imbalanced across an axle3
Offside Headlamp not working on dipped beam (4.1.1 (a) (ii))3
Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))3
Offside Rear Service brake excessively binding (1.2.1 (f))2
Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f))2
Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i))2
Rear Brake disc significantly and obviously worn (1.1.14 (a) (i))2
Brake lever has insufficient reserve travel (1.1.2 (a))2
Offside Front Position lamp not working (4.2.1 (a) (ii))2
Offside Front Coil spring fractured or broken (5.3.1 (b) (i))2
Offside Stop lamp(s) not working (4.3.1 (a) (ii))2
Brake hose damaged2
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))2
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))2
Offside Side repeater incorrect colour (4.4.3 (a))2
Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c))2
Nearside Front Headlamp aim projected beam image is obviously incorrect kick up to offside (4.1.2 (c))2
Offside Front Headlamp aim projected beam image is obviously incorrect kick up to offside (4.1.2 (c))2
Offside Rear Rear fog lamp not working (4.5.1 (a) (ii))2
Front Service brake excessively fluctuating (1.2.1 (e))2
Nearside Front Shock absorbers has negligible damping effect (5.3.2 (d))2
Offside Front Shock absorbers has negligible damping effect (5.3.2 (d))2
Nearside Rear Shock absorbers has a serious fluid leak2
Rear fog lamp not working (4.5.1 (a) (ii))2
Offside Rear Outline marker lamp not working (4.2.1 (a) (ii))2
Exhaust emissions exceed manufacturers specified limit (8.2.2.2 (a))2
Rear All direction indicators light intensity significantly reduced |4.4.3 |a||1
Nearside Front Service brake excessively binding (1.2.1 (f))1
Nearside Front Shock absorbers has a serious fluid leak1
Nearside Rear Anti-roll bar linkage pin or bush excessively worn (5.3.4 (a) (i))1
Nearside Front Brake performance unable to be tested pad missing (1.2.1 (g))1
Offside Front Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a||1
Nearside Rear Parking brake inoperative on one side |1.4.1 |a||1
Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i))1
Rear Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c))1
Offside Rear Brake disc contaminated (1.1.14 (b))1
Rear fog lamp obviously incorrectly positioned (4.5.4 (a))1
Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))1
Nearside Rear Anti-roll bar pin or bush excessively worn Outer bush connecting to the link (5.3.4 (a) (i))1
Front Headlamp not working on dipped beam both side (4.1.1 (a) (ii))1
Rear Stop lamp(s) not working both side (4.3.1 (a) (ii))1
Offside Rear fog lamp lens defective such that emitted light is adversely affected lens damaged. (4.5.1 (b) (ii))1
Nearside Rear Shock absorbers has negligible damping effect (5.3.2 (d))1
Offside Rear Shock absorbers damaged to the extent that it does not function (5.3.2 (b))1
Rear Brake cable has restricted free movement x2 (1.1.15 (e))1
Front Brake disc significantly and obviously worn (1.1.14 (a) (i))1
Nearside Front Outline marker lamp not working (4.2.1 (a) (ii))1
Nearside Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii))1
Offside Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii))1
Nearside 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 Front Outer Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Front Wheel bearing rough when rotated (5.1.3 (b) (i))1
Offside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii))1
Nearside Front Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i))1
Nearside Stop lamp(s) not working (4.3.1 (a) (ii))1
Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))1
Offside Front Headlamp aim unable to be tested headlight aim not checked due to bulb inoperative (4.1.2 (b))1
Electronic stability control warning lamp indicates a fault traction control light stays on dash (7.12 (e))1
Front Exhaust has a major leak of exhaust gases exhaust pipe flexi pipe blowing to excess (6.1.2 (a))1
Anti-roll bar linkage pin or bush excessively worn both rear drop link bushes excessive play (5.3.4 (a) (i))1
Central Front Engine mounting bracket excessively loose (6.1.8 (a) (ii))1
Electronic stability control warning lamp indicates a fault (7.12 (e))1
Hazard warning switch inoperative (4.4.2 (a) (ii))1
Nearside Rear Position lamp not working (4.2.1 (a) (ii))1
Nearside Front Anti-roll bar linkage ball joint excessively worn Nut onto ball joint loose and joint worn. (5.3.4 (a) (i))1
Nearside Front All outline marker lamps not working (4.2.1 (a) (ii))1
Steering column has excessive movement up and down (2.2.2 (a))1
Nearside Rear Passengers airbag obviously inoperative (7.1.5 (c))1
Rear Brake disc significantly and obviously worn s (1.1.14 (a) (i))1
Drivers seat with a defective structure (6.2.5 (a) (i))1
Front Exhaust has a major leak of exhaust gases (6.1.2 (a))1
Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i))1
Offside Front Steering linkage insecure to the extent there is excessive movement at the mountings Rack end (2.1.3 (a) (ii))1
Nearside Rear Service brake excessively binding (1.2.1 (f))1
Nearside Outline marker lamp not working (4.2.1 (a) (ii))1
Offside Outline marker lamp not working (4.2.1 (a) (ii))1
Offside Rear Rear reflector missing (4.8.2 (a) (ii))1
Nearside Front Seat belt buckle damaged (7.1.2 (d))1
Parking brake lever defective so that it cannot be satisfactorily operated (1.1.6 (d))1
Offside Rear Body panel damaged and likely to cause injury (6.2.1 (a) (i))1
Rear Service brake excessively binding (1.2.1 (f))1
Power steering component leaking rack (2.1.5 (a))1
Nearside Rear Outer Position lamp not working (4.2.1 (a) (ii))1
Offside Rear Outer Position lamp not working (4.2.1 (a) (ii))1
Nearside Side repeater incorrect colour (4.4.3 (a))1
Rear brake disc in such a condition that it is seriously weakened1
Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h||1
Nearside Rear Position lamp not working |4.2.1 |a| |ii||1
Nearside Obligatory mirror seriously damaged, affecting the rear view (3.3 (b) (ii))1
Front Service brake excessively fluctuating Both (1.2.1 (e))1
Rear Exhaust system insecure Tail pipe insecure clamp missing, likely to fall off (6.1.2 (a))1
Fuel system component leaking (6.1.3 (b) (i))1
Supplementary restraint system warning lamp indicates a fault |7.1.6 |a||1
Parking brake lever pivot worn to the extent that the brake may inadvertently release insecure (1.1.6 (b) (ii))1
Electronic parking brake warning indicates a malfunction (1.1.6 (e))1
Nearside Rear Parking brake inoperative on one side Lacks the required efficiency on roller. (1.4.1 (a))1
Offside Front Brake hose excessively twisted (1.1.12 (b) (ii))1
Offside Rear Stop lamp(s) showing white light to the rear (4.3.3 (a) (ii))1
Offside Rear Outline marker lamp not working end lamp |4.2.1 |a||1
Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii))1
Rear Service brake excessively fluctuating (1.2.1 (e))1
Brake relay lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f))1
Nearside Headlamp aim unable to be tested (4.1.2 (b))1
Anti-roll bar pin or bush excessively worn REAR DROP LINK BUSHES WORN (5.3.4 (a) (i))1
Nearside Rear Parking brake inoperative on one side Low effort recorded.(80kg) (1.4.1 (a))1
Offside Reversing lamp inoperative (4.6.1 (a))1
Nearside Rear Outline marker lamp not working (4.2.1 (a) (ii))1
Nearside Rear Parking brake inoperative on one side Does not make required effort. (1.4.1 (a))1
Offside Rear Parking brake inoperative on one side Does not make the required effort (1.4.1 (a))1
Offside Headlamp aim unable to be tested (4.1.2 (b))1
Nearside Front Direction indicator incorrect colour Very white (4.4.3 (a))1
Nearside Headlamp insecure |4.1.1 |c||1
Offside Rear Shock absorbers has a serious fluid leak1
Engine MIL inoperative or indicates a malfunction |8.2.2.2 |g||1
Speed limiter plate missing |7.10 |e||1
Exhaust fumes causing a danger to health of persons on board exhaust tail pipe is not exiting the side of the vehicle |6.1.2 |b| |ii||1
Offside Rear Position lamp not working (4.2.1 (a) (ii))1
Nearside Side repeater not working (4.4.1 (a) (ii))1
Nearside Front Fuel cap/sealing device ineffective Fuel cap damaged, not locking properly. (6.1.3 (b) (i))1
Nearside Front Supplementary restraint system warning lamp indicates a fault Light goes off even when seat belt is not plugged in. (7.1.6 (a))1
Offside Front Supplementary restraint system warning lamp indicates a fault Light goes off even when seat belt is not plugged in. (7.1.6 (a))1
Nearside Front Front passenger door catch insecure (6.2.3 (c) (ii))1
Nearside Anti-roll bar ball joint excessively worn (5.3.4 (a) (i))1
Offside Rear Coil spring fractured or broken (5.3.1 (b) (i))1
Nearside Rear Anti-roll bar linkage pin or bush excessively worn `O` bush |5.3.4 |a| |i||1
Nearside Front Side repeater not working (4.4.1 (a) (ii))1
Offside Front Service brake excessively binding (1.2.1 (f))1
Nearside Front Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a||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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