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MOT History from tests of diesel MERCEDES BENZ UNKNOWNs year 1991

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:57.45%
(The average a diesel MERCEDES BENZ UNKNOWN year 1991 passes without issue)
Based on:47 MOT Tests
Most common failuresNo# failures
Brakes imbalanced across an axle2
Offside Front Brake master cylinder/servo mounting prescribed area is excessively corroded (1.1.21 (e) (i))2
Windscreen wiper does not clear the windscreen effectively2
Registration plate lamp issues2
Stop lamp(s) all not working (4.3.1 (a) (iii))2
Offside Rear Braking system leaking |3.6.A.1|1
Offside Front Position lamp not working (4.2.1 (a) (ii))1
Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))1
Nearside Front Integral body structure or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting At wipers mounting (6.2.2 (d) (i))1
Bonnet cannot be secured in the closed position (3.1 (b) (i))1
Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii))1
Power steering pipe/hose leaking (2.1.5 (a))1
Power steering malfunctioning (2.1.5 (a))1
Power steering component insecure reservoir insecure (2.1.5 (d) (i))1
Power steering fluid reservoir empty (2.1.5 (b) (ii))1
Nearside Front Integral body structure or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting Headlamp (6.2.2 (d) (i))1
Offside Front Integral body structure or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting Headlamp (6.2.2 (d) (i))1
Integral body structure or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting Radiator support (6.2.2 (d) (i))1
Offside Front Integral body structure or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting Step (6.2.2 (d) (i))1
Offside Front Drag link end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))1
Offside Front Steering linkage ball joint ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))1
Offside Front Track rod end ball joint dust cover insecure so that it no longer prevents the ingress of dirt (2.1.3 (g) (ii))1
Service brake efficiency below requirements (1.2.2 (a) (i))1
Nearside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength floor area (5.3.6 (a) (i))1
Offside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i))1
Nearside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength (5.3.6 (a) (i))1
Offside Rear Service brake excessively binding (1.2.1 (f))1
Offside Front Service brake excessively binding (1.2.1 (f))1
Rear fog lamp not working (4.5.1 (a) (ii))1
Rear fog lamp tell-tale not working (4.9.1 (a) (ii))1
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))1
Front Drag link end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt |2.1.3 |g| |ii||1
Rear Drag link end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt |2.1.3 |g| |ii||1
Nearside Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt |2.1.3 |g| |ii||1
Offside Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt |2.1.3 |g| |ii||1
Nearside Rear Suspension component insecurely attached |5.3.3 |a| |i||1
Offside Rear Suspension component insecurely attached |5.3.3 |a| |i||1
Anti-lock braking system warning lamp does not illuminate |3.4.1b|1
front brake binding |3.7.B.1|1
Fuel system component leaking Fuel pump (6.1.3 (b) (i))1
Offside Drivers door cannot be opened from outside the vehicle (6.2.3 (a))1
Exhaust system not adequately supported |7.1.1|1
Exhaust has a major leak of exhaust gases (6.1.2 (a))1
Offside Drivers door cannot be opened from inside the vehicle (6.2.3 (a))1
Nearside Side repeater not working (4.4.1 (a) (ii))1
Nearside Front Direction indicator lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii))1
Nearside Front Position lamp not working (4.2.1 (a) (ii))1
Nearside Rear Position lamp not working (4.2.1 (a) (ii))1
Nearside Front Upper Outline marker lamp not working (4.2.1 (a) (ii))1
Offside Front Upper 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 Rear reflector missing (4.8.2 (a) (ii))1
Offside Rear reflector missing (4.8.2 (a) (ii))1
Offside Outer Power steering pipe/hose leaking AT STEERING BOX (2.1.5 (a))1
Offside Inner Power steering pipe/hose leaking UNION (2.1.5 (a))1
Central Exhaust has a major leak of exhaust gases EXHAUST BOX (6.1.2 (a))1
Nearside Front Road wheel fixings not compatible WASHER MISSING (5.2.2 (d))1
Offside Rear Road wheel fixings not compatible WASHER MISSING (5.2.2 (d))1
Offside Rear Road wheel fixings not compatible WRONG NUT TYPE (5.2.2 (d))1
Nearside Outer Braking system leaking NEAR UNLOADER VALVE (1.1.3 (d))1
Offside Entrance/exit step in such a condition as to affect the stability of passengers during use DRIVERS (9.7 (a) (iii))1
Nearside Seat belt not functioning as intended (7.1.2 (c))1
Offside Headlamp aim projected beam image is obviously incorrect water in lamp (4.1.2 (c))1
Nearside Side repeater lens defective such that the emitted light is adversely affected showing white light to rear (4.4.1 (b) (ii))1
Offside Front Upper Suspension component pin or bush excessively worn shock absorber bush worn allowing abnormal movement (5.3.4 (a) (i))1
Offside Front Headlamp not working on main beam (4.1.1 (a) (ii))1
Power steering pipe|s| or hose|s| excessively corroded power steering box pipes |2.3.2|1
Nearside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt |2.1.3 |g| |ii||1
Offside Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt |2.1.3 |g| |ii||1
Offside Rear fog lamp not working |4.5.1 |a| |ii||1
Service brake: efficiency below requirements |3.7.B.7|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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