MOT History from tests of petrol MERCEDES BENZ 300s year 1986

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:74.40%

(The average a petrol MERCEDES BENZ 300 year 1986 passes without issue)

Based on:7,979 MOT Tests

Most common failures	No# failures
Headlamp aim out of alignment	568
Exhaust emissions carbon monoxide content excessive \|7.3.B.1a\|	221
Brake pipe excessively corroded	217
Windscreen wiper does not clear the windscreen effectively	202
Registration plate lamp issues	127
Parking brake: efficiency below requirements \|3.7.B.7\|	115
Anti-lock braking system warning lamp indicates an ABS fault	110
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	85
Registration plate issues	76
Offside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	73
Nearside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	71
Brake hose excessively deteriorated	66
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	66
Brakes imbalanced across an axle	65
Rear parking brake recording little or no effort	63
Offside Rear fog lamp not working \|1.3.2b\|	52
Rear fog lamp tell tale not working \|1.3.1b\|	47
Exhaust emissions hydrocarbon content excessive \|7.3.B.1b\|	43
Nearside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	38
Centre Exhaust has a major leak of exhaust gases \|7.1.2\|	37
Offside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	37
Hazard warning switch faulty \|1.4.B.1d\|	36
Exhaust has a major leak of exhaust gases \|7.1.2\|	36
Rear brake binding	36
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	35
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	33
Offside Stop lamp not working \|1.2.1b\|	33
Nearside Stop lamp not working \|1.2.1b\|	30
Service brake: efficiency below requirements \|3.7.B.7\|	30
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	26
Horn not working \|1.6.2a\|	25
Front Exhaust has a major leak of exhaust gases \|7.1.2\|	24
Rear Exhaust system not adequately supported \|7.1.1\|	24
Offside front brake binding \|3.7.B.1\|	23
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	23
Offside Rear Rear fog lamp not working \|1.3.2b\|	23
Parking brake lever has no reserve travel \|3.1.6b\|	22
Offside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	21
Exhaust system not adequately supported \|7.1.1\|	20
Nearside front brake binding \|3.7.B.1\|	20
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	20
Centre Exhaust system not adequately supported \|7.1.1\|	20
Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))	19
Power steering component\|s\| leaking \|2.3.3b\|	19
Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))	18
Offside Rear Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	18
Offside Headlamp not working on dipped beam \|1.7.5a\|	18
Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))	17
Offside Front Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	17
Windscreen washer not working	17
Anti-lock braking system warning lamp does not illuminate \|3.4.1b\|	17
Fuel system component leaking \|7.2.3\|	16
Mechanical brake component has restricted free movement	16
Nearside Rear Stop lamp not working \|1.2.1b\|	16
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	16
Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	16
Nearside Rear Shock absorber has a serious fluid leak \|2.7.3\|	16
Hazard warning lamps not flashing in phase, with ignition on \|1.4.B.1f\|	16
Nearside Headlamp not working on dipped beam \|1.7.5a\|	16
Battery insecure \|1.9.1\|	15
Rear fog lamp not working \|1.3.2b\|	15
Direction indicators not working \|1.4.A.2c\|	15
Hazard warning lamps inoperative \|1.4.B.1b\|	14
Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	14
Nearside Side repeater not working \|1.4.A.2c\|	14
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\|	13
Windscreen has damage	13
Rear Rear fog lamp not working \|1.3.2b\|	13
Nearside Front Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	13
Offside Headlamp not working on main beam \|1.7.5a\|	13
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	13
Offside Front coil spring fractured \|2.4.C.1a\|	13
Offside Front front brake binding \|3.7.B.1\|	12
Offside Rear Stop lamp not working \|1.2.1b\|	12
Offside Front Direction indicator not working \|1.4.A.2c\|	12
Rear Exhaust has part of the system excessively deteriorated \|7.1.1a\|	12
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	12
Rear Exhaust mounting missing \|7.1.1b\|	12
Offside Side repeater not working \|1.4.A.2c\|	12
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	12
Steering system has excessive free play detected at the steering wheel \|steering box fitted\| \|2.2.A.1a\|	12
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	11
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	11
Rear brake application uneven	11
Hazard warning lamps not flashing in phase, with ignition off \|1.4.B.1f\|	11
Nearside Front front brake binding \|3.7.B.1\|	11
Front brake application uneven	11
Nearside Rear Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	10
Offside Front Brake hose bulging under pressure \|3.6.B.3\|	10
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\|	10
Offside Front Lower Suspension arm corroded and seriously weakened \|2.4.G.1\|	10
Nearside Front Direction indicator not working \|1.4.A.2c\|	10
Nearside Front Headlamp not working on dipped beam \|1.7.5a\|	10
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	10
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	10
Nearside Front Steering component mounting prescribed area is excessively corroded \|2.2.C.1h\|	10
Front Exhaust system not adequately supported \|7.1.1\|	10
Steering box has a significant oil leak \|2.2.D.2e\|	9
Offside Front Brake hose leaking \|3.6.A.1\|	9
Rear Mechanical brake component has restricted free movement	9
Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering \|6.1.A.1\|	9
Nearside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	9
Windscreen wiper blade insecure	9
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	9
Offside Front coil spring cracked \|2.4.C.1a\|	8
Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	8
Nearside Front Lower Suspension arm corroded and seriously weakened \|2.4.G.1\|	8
Centre Exhaust mounting missing \|7.1.1b\|	8
Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	8
Emissions not tested \|7.0\|	8
Offside Front Position lamp not working (4.2.1 (a) (ii))	8
Exhaust emissions carbon monoxide content excessive \|8.2.1.2 \|b\|\|	8
Front Windscreen wiper blade deteriorated \|8.2.2\|	8
Nearside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	7
Steering damper leaking oil \|2.2.C.1f\|	7
Nearside Rear Body has a sharp edge caused by corrosion \|6.1.C.1\|	7
Offside Rear Body has a sharp edge caused by corrosion \|6.1.C.1\|	7
Exhaust mounting missing \|7.1.1b\|	7
Nearside Front Suspension arm corroded and seriously weakened \|2.4.G.1\|	7
Exhaust has part of the system excessively deteriorated \|7.1.1a\|	7
Nearside Headlamp not working on main beam \|1.7.5a\|	7
Nearside Headlamp aim beam image kick up to the offside \|1.8\|	7
Offside Front Suspension arm corroded and seriously weakened \|2.4.G.1\|	7
Front brake disc in such a condition that it is seriously weakened	7
Offside rear brake recording little or no effort \|3.7.B.5a\|	7
Nearside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt \|5.3.4 \|b\| \|ii\|\|	7
Offside Front Lower Suspension arm ball joint dust cover no longer prevents the ingress of dirt \|5.3.4 \|b\| \|ii\|\|	7
Nearside Front coil spring fractured \|2.4.C.1a\|	7
Offside Front Headlamp not working on dipped beam \|1.7.5a\|	7
Nearside Front Brake hose bulging under pressure \|3.6.B.3\|	7

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 petrol MERCEDES BENZ 300s year 1986

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