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MOT History from tests of diesel MERCEDES BENZ MOTORs year 1986

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

mot history
Pass percent:61.14%
(The average a diesel MERCEDES BENZ MOTOR year 1986 passes without issue)
Based on:193 MOT Tests
Most common failuresNo# failures
Brakes imbalanced across an axle17
Headlamp aim out of alignment17
Registration plate lamp issues13
Windscreen wiper does not clear the windscreen effectively10
Rear brake application uneven7
Offside Front Direction indicator not working |1.4.A.2c|6
Offside Rear fog lamp not working |1.3.2b|5
Brake hose excessively deteriorated5
Nearside Front position lamp|s| not working |1.1.A.3b|4
Brake pipe excessively corroded4
Rear fog lamp tell tale not working |1.3.1b|4
Exhaust has a major leak of exhaust gases |7.1.2|4
Horn not working |1.6.2a|4
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
Windscreen washer not working 3
Nearside Headlamp not working on dipped beam |1.7.5a|3
Service brake: efficiency below requirements |3.7.B.7|3
Rear Rear fog lamp not working |1.3.2b|3
Nearside Front Position lamp not working (4.2.1 (a) (ii))2
Offside Front Position lamp not working (4.2.1 (a) (ii))2
Offside Stop lamp not working |1.2.1b|2
Nearside Front wheel bearing rough when rotated |2.5.A.2|2
Offside Headlamp not working on dipped beam |1.7.5a|2
Nearside Rear Position lamp not working (4.2.1 (a) (ii))2
Offside Front position lamp|s| not working |1.1.A.3b|2
Offside Front Headlamp not working on dipped beam |1.7.5a|2
Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b|2
Nearside Rear position lamp|s| not working |1.1.A.3b|2
Nearside Front Direction indicator not working |1.4.A.2c|2
Power steering inoperative |2.3.3a|2
Fuel system component leaking |7.2.3|2
Exhaust system not adequately supported |7.1.1|2
Nearside Rear rear brake recording little or no effort |3.7.B.5a|2
Rear brake binding2
Offside Headlamp reflector seriously defective (4.1.1 (b) (ii))1
Exhaust emissions test not completed because smoke levels are significantly in excess of the specified limit values (8.2.2.2 (f))1
Parking brake efficiency below requirements (1.4.2 (a) (i))1
Nearside Headlamp reflector seriously defective (4.1.1 (b) (ii))1
Offside Rear fog lamp not working (4.5.1 (a) (ii))1
Brake pedal has insufficient reserve travel (1.1.2 (a))1
Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))1
Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))1
Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii))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
Hazard warning switch inoperative (4.4.2 (a) (ii))1
Hazard warning lamps inoperative (4.4.1 (e))1
Brake master cylinder leaking hydraulic fluid |3.6.G.1f|1
Nearside Stop lamp not working |1.2.1b|1
Offside Front All position lamps not working |1.1.A.3b|1
Offside Rear All position lamps not working |1.1.A.3b|1
Nearside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Offside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Offside Headlamp not working on main beam |4.1.1 |a| |ii||1
Offside Front wheel bearing rough when rotated |2.5.A.2|1
Nearside Headlamp aim not tested |1.8.A.1c|1
Offside Headlamp aim not tested |1.8.A.1c|1
Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|1
Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f|1
Nearside Headlamp aim beam image kick up to the offside |1.8|1
Headlamp switch faulty |1.7.1|1
Centre Exhaust has part of the system excessively deteriorated |7.1.1a|1
Nearside Front Exhaust system not adequately supported |7.1.1|1
Nearside Rear Stop lamp not working |1.2.1b|1
Offside Rear Stop lamp not working |1.2.1b|1
Offside Front Seat belt not functioning as intended (7.1.2 (c))1
Horn sound not in accordance with requirements (7.7 (c))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
Speedometer cannot be illuminated (7.8 (c) (ii))1
Exhaust emissions exceed level of metered smoke for a turbo charged engine (8.2.2.2 (b))1
Service brake efficiency below requirements (1.2.2 (a) (i))1
Horn not working (7.7 (a))1
Vehicle Identification Number not permanently displayed |6.3.5.a|1
Brake load sensing valve linkage defective and function impaired |3.6.E.3|1
Offside Front Brake pipe inadequately clipped |3.6.B.1|1
Offside Front Brake pipe leaking |3.6.A.1|1
Brake performance not tested |3.7.A.1|1
Nearside Front Position lamp not working |4.2.1 |a||1
Nearside Rear Position lamp not working |4.2.1 |a||1
Offside Rear fog lamp not working |4.5.1 |a| |ii||1
Rear fog lamp tell-tale not working |4.9.1 |a| |ii||1
Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Nearside Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Electrical wiring inadequately supported |1.9.2a|1
Nearside Front Electrical wiring inadequately supported |1.9.2a|1
Speedometer cannot be illuminated. |6.7.3|1
Emissions not tested |7.0|1
Offside rear brake recording little or no effort |3.7.B.5a|1
Nearside Windscreen wiper not operating automatically when switched on |8.2.1b|1
Offside Windscreen wiper not operating automatically when switched on |8.2.1b|1
Power steering pump drive system defective |2.3.6|1
Nearside Rear Upper Stop lamp adversely affected by the operation of another lamp |1.2.1f|1
Centre Exhaust has a major leak of exhaust gases |7.1.2|1
Offside Front Brake master cylinder/servo mounting prescribed area is excessively corroded under the servo curved box and under the wing area aswell (1.1.21 (e) (i))1
Centre Rear Exhaust system not adequately supported |7.1.1|1
Nearside Front brake disc excessively pitted |3.5.1h|1
Driver`s door cannot be opened from inside the vehicle |6.2.3 |a||1
Driver`s door cannot be opened from outside the vehicle |6.2.3 |a||1
Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|1
Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b|1
Exhaust emits excessive smoke or vapour of any colour |7.4.B.4|1
Rear Braking system leaking |3.6.A.1|1
Centre Exhaust system not adequately supported |7.1.1|1
Brake load sensing valve defective and function impaired |3.6.E.3|1
Brake load sensing valve seized |3.6.E.3|1
Nearside Front Body has a sharp edge caused by corrosion lower door skin |6.1.C.1|1
Nearside Rear Shock absorber detached |2.7.2b|1
Rear fog lamp switch faulty |1.3.1a|1
Direction indicators adversely affected by the operation of another lamp |1.4.A.2h|1
Front position lamp|s| incorrect colour |1.1.A.3e|1
Direction indicators not working |1.4.A.2c|1
Nearside Rear Suspension component mounting prescribed area excessively damaged significantly reducing structural strength |5.3.6 |a| |i||1
Service brake efficiency below requirements |1.2.2 |a| |i||1
Offside Indicator tell tale inoperative |1.4.A.2a|1
Nearside Rear Lower Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2|1
Nearside Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|1
Nearside Rear Body has a sharp edge caused by damage |6.1.C.1|1
Offside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Offside Rear reflector not red in colour |1.5.1d|1
Nearside Rear Anti-roll bar attachment bracket/mounting corroded and its strength is seriously reduced |2.4.G.1|1
Braking system leaking |3.6.A.1|1
Nearside Rear Upper Rear position lamp|s| incorrect colour |1.1.A.3e|1
Front Fuel system component leaking |7.2.3|1
Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Exhaust has a part missing |7.1.1a|1
Exhaust tailpipe not capable of allowing the emission probe to be inserted |7.4.B.1|1
Nearside Front Statutory seat belt missing |5.1.1|1
Offside Front Statutory seat belt missing |5.1.1|1
Nearside Headlamp insecure |1.7.3|1
Nearside Rear Rear position lamp|s| not working |1.1.A.3b|1
Nearside Side repeater not working |1.4.A.2c|1
Nearside Front Braking system leaking |3.6.A.1|1
Steering box damaged and unserviceable |2.2.C.1d|1
Nearside Outer Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2|1
Offside Outer Front Anti-roll bar has excessive play in a pin/bearing |2.4.G.2|1
Nearside Front Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Offside Front Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Front Drag link end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Offside Front Lower Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2|1
Nearside Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|1
Offside Front Leaf spring has excessive wear in a shackle pin and/or bush |2.4.B.2|1
Nearside Front All position lamps not working |1.1.A.3b|1
Nearside Front Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|1
Offside Front Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|1
Nearside Rear Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|1
Offside Rear Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|1
Centre Rear Parking brake lever has no reserve travel |3.1.6b|1
Stop lamp(s) all not working (4.3.1 (a) (iii))1
Nearside Headlamp not working on main beam (4.1.1 (a) (ii))1
Hazard warning tell tale not working correctly |1.4.B.1e|1
Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Front Lower Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2|1
Nearside Front Lower Leaf spring has a deteriorated shackle pin rubber bush resulting in excessive movement |2.4.B.2|1
Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Nearside rear brake recording little or no effort |3.7.B.5a|1
Drag link end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt front and rear |2.2.C.1c|1
Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Front Exhaust has a major leak of exhaust gases joint |7.1.2|1
Headlamp not working on main beam both |1.7.5a|1
Nearside Rear Outer Direction indicator not working (4.4.1 (a) (ii))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
Nearside 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
Nearside front brake binding |3.7.B.1|1
Nearside Front Front position lamp|s| not working |1.1.A.3b|1
Nearside Front Headlamp not working on dipped beam |1.7.5a|1
Nearside Front Direction indicator incorrect colour |1.4.A.2f|1
Offside Front Direction indicator incorrect colour |1.4.A.2f|1
Offside Rear Parking brake is not capable of being maintained in operation by direct mechanical action only |3.1.2|1
Offside Rear Brake pedal does not operate a brake fitted to each wheel |3.3.A.3|1
Offside Front Front position lamp|s| not working |1.1.A.3b|1
Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b|1
Offside Rear Brake load sensing valve linkage obviously incorrectly adjusted |3.6.E.3|1
Rear Exhaust has a major leak of exhaust gases (6.1.2 (a))1
Offside Parking brake inoperative on one side |1.4.1 |a||1
Nearside Upper Front position lamp|s| not working |1.1.A.3b|1
Offside Headlamp not in good working order |not working| |1.2.4a|1
Front Windscreen wiper not operating automatically when switched on |8.2.1b|1
Nearside Front Fuel pipe leaking |7.2.3|1
Offside Front Exhaust has a major leak of exhaust gases |7.1.2|1
Stop lamp not working both |1.2.1b|1
Offside Front Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Parking brake: efficiency below requirements |3.7.B.7|1
Parking brake efficiency below requirements |1.4.2 |a| |i||1
Parking |secondary brake| on a single line braking system imbalanced across an axle Axle 1 |1.3.1 |b| |i||1
Offside Rear Parking |secondary brake| on a single line braking system has inadequate effort at a wheel |1.3.1 |a| |i||1
Nearside Rear Brake pipe likely to become detached or damaged |1.1.11 |d| |ii||1
Nearside Front Passenger`s seat backrest cannot be secured in the upright position. |6.2.6 |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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