MOT History from tests of diesel MERCEDES BENZ 300s year 1985

Review the list of common MERCEDES BENZ 300 failures below or to perform a specific mot history check on your MERCEDES BENZ then use our popular KnowYourCar service

mot history

Pass percent:66.72%

(The average a diesel MERCEDES BENZ 300 year 1985 passes without issue)

Based on:1,223 MOT Tests

Most common failures	No# failures
Registration plate lamp issues	65
Brake pipe excessively corroded	61
Headlamp aim out of alignment	59
Windscreen wiper does not clear the windscreen effectively	50
Parking brake: efficiency below requirements \|3.7.B.7\|	35
Brake hose excessively deteriorated	32
Offside Rear fog lamp not working \|1.3.2b\|	29
Brakes imbalanced across an axle	27
Rear parking brake recording little or no effort	23
Registration plate issues	22
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	21
Offside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	16
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	16
Battery insecure \|1.9.1\|	16
Nearside Stop lamp not working \|1.2.1b\|	14
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	14
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	13
Nearside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	13
Hazard warning switch faulty \|1.4.B.1d\|	12
Rear Rear fog lamp not working \|1.3.2b\|	12
Offside Stop lamp not working \|1.2.1b\|	12
Parking brake lever has no reserve travel \|3.1.6b\|	12
Exhaust emits an excessive level of metered smoke for a non-turbo charged engine \|7.4.B.3b\|	11
Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	11
Offside Headlamp not working on main beam \|1.7.5a\|	10
Service brake: efficiency below requirements \|3.7.B.7\|	10
Offside Headlamp not working on dipped beam \|1.7.5a\|	10
Rear fog lamp not working \|1.3.2b\|	9
Exhaust has a major leak of exhaust gases \|7.1.2\|	9
Rear Exhaust system not adequately supported \|7.1.1\|	9
Offside Rear coil spring fractured \|2.4.C.1a\|	9
Nearside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	9
Offside Front wheel bearing has excessive play \|2.5.A.3c\|	9
Nearside Front Track rod end ball joint has excessive play \|2.2.B.1f\|	9
Offside Rear Rear fog lamp not working \|1.3.2b\|	9
Rear brake binding	9
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	9
Offside Front coil spring fractured \|2.4.C.1a\|	9
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	8
Offside Rear Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	8
Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	8
Fuel pipe leaking \|7.2.3\|	8
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	7
Nearside Track rod end ball joint has excessive play \|2.2.B.1f\|	7
Nearside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	7
Nearside Front wheel bearing has excessive play \|2.5.A.3c\|	7
Nearside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	7
Nearside Rear Stop lamp not working \|1.2.1b\|	7
Centre Exhaust has a major leak of exhaust gases \|7.1.2\|	7
Rear fog lamp not working (4.5.1 (a) (ii))	6
Offside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	6
Offside Rear Stop lamp not working \|1.2.1b\|	6
Exhaust emits excessive smoke or vapour of any colour \|7.4.B.4\|	6
Front brake disc in such a condition that it is seriously weakened	6
Service brake: efficiency below requirements \|3.7.C.1a\|	6
Direction indicators not working \|1.4.A.2c\|	6
Offside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	6
Offside front brake binding \|3.7.B.1\|	6
Offside Front Front wheel bearing has excessive play \|2.5.A.3c\|	6
Exhaust system not adequately supported \|7.1.1\|	6
Horn not working \|1.6.2a\|	6
Hazard warning lamps inoperative \|1.4.B.1b\|	5
Rear brake application uneven	5
Nearside Front Direction indicator not working \|1.4.A.2c\|	5
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\|	5
Brake load sensing valve linkage defective and function impaired \|3.6.E.3\|	5
Steering system has excessive free play detected at the steering wheel \|steering box fitted\| \|2.2.A.1a\|	5
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	5
Offside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	5
Nearside Front suspension has excessive play in a lower suspension ball joint \|2.5.B.1a\|	5
Offside Front suspension has excessive play in a lower suspension ball joint \|2.5.B.1a\|	5
Hazard warning lamps not flashing in phase, with ignition on \|1.4.B.1f\|	5
Hazard warning lamps not flashing in phase, with ignition off \|1.4.B.1f\|	5
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	5
Offside Rear coil spring incomplete \|2.4.C.1a\|	5
Offside Front Track rod end ball joint has excessive play \|2.2.B.1f\|	5
Nearside Rear Body has a sharp edge caused by corrosion \|6.1.C.1\|	5
Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush \|2.4.G.2\|	4
Offside Front Direction indicator incorrect colour \|1.4.A.2f\|	4
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	4
Rear fog lamp tell tale not working \|1.3.1b\|	4
Offside Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	4
Offside Front Upper Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	4
Nearside Rear Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	4
Nearside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	4
Nearside Front Drag link end ball joint has excessive play \|2.2.B.1f\|	4
Exhaust emits an excessive level of metered smoke for a turbo charged engine \|7.4.B.3b\|	4
Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	4
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	4
Nearside Rear coil spring incomplete \|2.4.C.1a\|	4
Offside Rear Vehicle structure has excessive corrosion which adversely affects braking or steering \|6.1.A.1\|	4
Nearside Front Vehicle structure has excessive corrosion which adversely affects braking or steering \|6.1.A.1\|	4
Steering box has relative movement between sector shaft and the drop arm \|2.2.B.1b\|	4
Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	4
Front Exhaust has a major leak of exhaust gases \|7.1.2\|	4
Nearside Front Front wheel bearing has excessive play \|2.5.A.3c\|	4
Offside Rear Body has a sharp edge caused by corrosion \|6.1.C.1\|	4
Offside Front Brake hose bulging under pressure \|3.6.B.3\|	3
Offside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.4.G.2\|	3
Offside Front Position lamp not working (4.2.1 (a) (ii))	3
Parking brake lever defective so that it cannot be satisfactorily operated \|3.1.3c\|	3
Nearside Rear Direction indicator incorrect colour \|1.4.A.2f\|	3
Nearside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	3
Offside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	3
Nearside Rear Direction indicator not working \|1.4.A.2c\|	3
Nearside Front Wheel bearing has excessive play (5.1.3 (a) (i))	3
Offside Front Headlamp not working on dipped beam \|1.7.5a\|	3
Offside Rear Upper Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	3
Offside Front Shock absorber has a serious fluid leak \|2.7.3\|	3
Offside Front Lower Suspension arm has excessive play in a ball joint \|2.4.G.2\|	3
Nearside rear brake recording little or no effort \|3.7.B.5a\|	3
Exhaust has part of the system excessively deteriorated \|7.1.1a\|	3
Brake performance not tested \|3.7.A.1\|	3
Indicator tell tale inoperative \|1.4.A.2a\|	3
Offside Rear fog lamp missing \|1.3.2a\|	3
Power steering component\|s\| leaking \|2.3.3b\|	3
Nearside Headlamp not working on dipped beam \|1.7.5a\|	3
Fuel system component leaking \|7.2.3\|	3
Nearside Rear coil spring fractured \|2.4.C.1a\|	3
Nearside Windscreen wiper blade deteriorated \|8.2.2\|	3
Headlamp aim not tested \|1.8.A.1c\|	3
Nearside Rear Statutory seat belt missing \|5.1.1\|	3
Emissions not tested \|7.0\|	3
Offside Front Drag link end ball joint has excessive play \|2.2.B.1f\|	3
Offside Inner Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	3
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	3
Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	3
Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	3
Offside Drag link end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	3
Offside Front Direction indicator insecure \|1.4.A.2b\|	3
Offside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	3
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	3
Offside Rear Shock absorber has a serious fluid leak \|2.7.3\|	3
Nearside Front Lower Suspension arm has excessive play in a ball joint \|2.4.G.2\|	3
Fuel tank leaking \|7.2.3\|	3
Offside Front coil spring incomplete \|2.4.C.1a\|	3
Driver`s seat insecure \|6.2.A.1\|	3
Nearside Front brake disc excessively pitted \|3.5.1h\|	3
Offside Front brake disc excessively pitted \|3.5.1h\|	3
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	3
Offside Rear Statutory seat belt missing \|5.1.1\|	2
front brakes release unevenly \|3.7.B.4\|	2
Offside Rear Direction indicator not working \|1.4.A.2c\|	2
Nearside Rear Shock absorber has negligible damping effect \|2.7.5\|	2
Brake hose damaged	2
Nearside Rear Position lamp not working (4.2.1 (a) (ii))	2
Rear Exhaust mounting missing \|7.1.1b\|	2
Exhaust mounting missing \|7.1.1b\|	2
Centre Exhaust has part of the system excessively deteriorated \|7.1.1a\|	2
Offside Rear Lower Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Nearside Headlamp aim beam image kick up to the offside \|1.8\|	2
Offside Outer Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Offside Inner Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Parking brake: efficiency below requirements \|3.7.D.4\|	2
Offside Rear Rear fog lamp missing \|1.3.2a\|	2
Offside Front coil spring broken \|2.4.C.1a\|	2
Nearside Headlamp not working on main beam \|1.7.5a\|	2
Front Fuel system component leaking \|7.2.3\|	2
Nearside front brake binding \|3.7.B.1\|	2
Nearside Front Direction indicator incorrect colour \|1.4.A.2f\|	2
Offside Headlamp aim beam image kick up to the offside \|1.8\|	2
Front passenger door cannot be opened from outside the vehicle \|6.2.B.1b\|	2
Brake pedal has insufficient reserve movement \|3.3.A.5\|	2
Offside Front front brake binding \|3.7.B.1\|	2
Brake pedal spongy \|3.3.B.1b\|	2
Offside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	2
Nearside Rear Upper Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Horn not a continuous or uniform sound \|1.6.2e\|	2
Offside Front brake disc contaminated by grease \|3.5.1h\|	2
Nearside Front coil spring incomplete \|2.4.C.1a\|	2
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	2
Service brake is causing the vehicle to swerve to the nearside \|3.7.C.2\|	2
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))	2
Front Steering damper damaged and unserviceable \|2.2.C.1d\|	2
Offside Front Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Windscreen washer not working	2
Rear Exhaust has part of the system excessively deteriorated \|7.1.1a\|	2
Nearside Front Windscreen wiper blade deteriorated \|8.2.2\|	2
Offside Front Windscreen wiper blade deteriorated \|8.2.2\|	2
Offside Rear Sub-frame rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	2
Steering system excessively tight \|2.2.D.1\|	2
Offside Rear Anti-roll bar linkage has excessive play in a pin/bush \|2.4.G.2\|	2
Stop lamp(s) all not working (4.3.1 (a) (iii))	2
Nearside Rear Upper Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	2
Offside Front wheel bearing rough when rotated \|2.5.A.2\|	2
Nearside Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Stop lamp not working \|1.2.1b\|	2
Front brake excessively fluctuating	2
Nearside Rear wheel bearing has excessive play \|2.6.2\|	2
Offside Track rod end ball joint has excessive play \|2.2.B.1f\|	2
Nearside Front Braking system leaking \|3.6.A.1\|	2
Offside Side repeater not working \|1.4.A.2c\|	2
Nearside Front Shock absorber has a serious fluid leak \|2.7.3\|	2
Nearside Rear Shock absorber has a serious fluid leak \|2.7.3\|	2
Offside rear brake recording little or no effort \|3.7.B.5a\|	2
Front Windscreen wiper not operating automatically when switched on \|8.2.1b\|	2
Nearside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.4.G.2\|	2
Nearside Rear Trailing arm rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	2
Nearside Front Headlamp not working on dipped beam \|1.7.5a\|	2
Brake pedal creeps down when held under pressure \|3.3.B.1a\|	2
Rear Brake load sensing valve linkage seized \|3.6.E.3\|	2
Offside Front Wheel bearing has excessive play (5.1.3 (a) (i))	2
Nearside Front Body has a sharp edge caused by corrosion \|6.1.C.1\|	2
Parking brake: efficiency below requirements \|3.7.C.1b\|	2
Offside Headlamp not working on dipped beam (4.1.1 (a) (ii))	2
Rear Stop lamp not working \|1.2.1b\|	2

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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MOT History from tests of diesel MERCEDES BENZ 300s year 1985

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