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MOT History from tests of petrol MERCEDES BENZ 450s year 1978

Review the list of common MERCEDES BENZ 450 failures below or to perform a specific mot history check on your MERCEDES BENZ then use our popular KnowYourCar service

mot history
Pass percent:71.55%
(The average a petrol MERCEDES BENZ 450 year 1978 passes without issue)
Based on:1,195 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment92
Windscreen wiper does not clear the windscreen effectively50
Exhaust emissions carbon monoxide content excessive |7.3.B.1a|39
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|34
Brake pipe excessively corroded32
Rear brake binding32
Registration plate lamp issues23
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|22
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|19
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|17
Service brake: efficiency below requirements |3.7.B.7|16
Driver`s seat cannot be secured in the upright position. |6.2.A.2|16
Offside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|16
Registration plate issues16
Centre Exhaust has a major leak of exhaust gases |7.1.2|15
Brakes imbalanced across an axle13
Nearside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|13
Parking brake: efficiency below requirements |3.7.B.7|12
Exhaust has a major leak of exhaust gases |7.1.2|12
Horn not working |1.6.2a|11
Nearside front brake binding |3.7.B.1|10
Front passenger seat cannot be secured in the upright position. |6.2.4|10
Offside Stop lamp not working |1.2.1b|9
Brake hose excessively deteriorated9
Windscreen washer not working 8
Offside front brake binding |3.7.B.1|8
Offside Front Headlamp not working on dipped beam |1.7.5a|7
Rear Exhaust has a major leak of exhaust gases |7.1.2|7
Exhaust emissions hydrocarbon content excessive |7.3.B.1b|7
Rear Exhaust mounting missing |7.1.1b|7
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|6
Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|6
Nearside Stop lamp not working |1.2.1b|6
Mechanical brake component has restricted free movement6
Nearside Headlamp not working on main beam |1.7.5a|6
Rear Exhaust system not adequately supported |7.1.1|6
Brake hose has insufficient room to move6
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|5
Nearside Front Headlamp not working on dipped beam |1.7.5a|5
Rear parking brake recording little or no effort5
Rear brake application uneven5
Direction indicators not working |1.4.A.2c|5
Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|5
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|5
Hazard warning switch faulty |1.4.B.1d|5
Front Exhaust has a major leak of exhaust gases |7.1.2|5
Offside Rear Brake hose leaking |3.6.A.1|5
Brake performance not tested |3.7.A.1|5
Nearside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3|5
Offside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3|5
Power steering component|s| leaking |2.3.3b|5
Nearside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|4
Nearside Front position lamp|s| not working |1.1.A.3b|4
Offside Front Seat belt retracting mechanism defective |5.2.5b|4
Nearside Front Passenger`s seat cannot be secured in the upright position. |6.2.A.2|4
Offside Headlamp not working on dipped beam |1.7.5a|4
Nearside Front brake caliper has restricted free movement |3.5.1k|4
Offside Inner Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|4
Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|4
Offside Front wheel bearing rough when rotated |2.5.A.2|4
Windscreen has damage4
Parking brake: efficiency below requirements |3.7.C.1b|4
Offside Front Brake hose bulging under pressure |3.6.B.3|4
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|4
Nearside Inner Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|4
Nearside Driver`s seat cannot be secured in the upright position. |6.2.A.2|4
Offside Front front brake binding |3.7.B.1|4
Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|4
Nearside Rear Suspension component mounting prescribed area is inadequately repaired |2.4.A.3|4
Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|4
Hazard warning lamps inoperative |1.4.B.1b|4
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|4
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|4
Front brake application uneven4
Offside Driver`s seat cannot be secured in the upright position. |6.2.A.2|4
Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|3
Offside Rear position lamp|s| not working |1.1.A.3b|3
Offside Front brake caliper has restricted free movement |3.5.1k|3
Nearside Indicator tell tale inoperative |1.4.A.2a|3
Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|3
Nearside Inner Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|3
Offside Outer Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|3
Nearside Inner Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|3
Nearside Rear Stop lamp not working |1.2.1b|3
Offside Front position lamp|s| not working |1.1.A.3b|3
Offside Front Headlamp not working on main beam |1.7.5a|3
Rear Mechanical brake component has restricted free movement3
Nearside Rear Brake hose leaking |3.6.A.1|3
Brake hose damaged3
Offside Front wheel bearing has excessive play |2.5.A.3c|3
Nearside Rear Brake hose bulging under pressure |3.6.B.3|3
Offside Front Direction indicator not working |1.4.A.2c|3
Nearside Front Front position lamp|s| not working |1.1.A.3b|3
Nearside Headlamp aim beam image kick up to the offside |1.8|3
Offside Headlamp aim beam image kick up to the offside |1.8|3
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|3
Front Passenger`s seat cannot be secured in the upright position. |6.2.A.2|3
Offside Front Driver`s seat cannot be secured in the upright position. |6.2.A.2|3
Indicator switch faulty |1.4.A.1|3
Offside Rear Suspension component mounting prescribed area is inadequately repaired |2.4.A.3|3
Battery insecure |1.9.1|2
Nearside Rear Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|2
Main beam `tell-tale` not working |1.7.4c|2
Steering system has excessive free play detected at the steering wheel |steering box fitted| |2.2.A.1a|2
Nearside Front Exhaust has a major leak of exhaust gases |7.1.2|2
Rear Fuel hose leaking |7.2.3|2
Exhaust emissions carbon monoxide content excessive |8.2.1.2 |b||2
Nearside Outer Rear 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
Nearside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a|2
Offside Front Drag link end ball joint has excessive play |2.2.B.1f|2
Nearside Front wheel bearing rough when rotated |2.5.A.2|2
Nearside Front Lower Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Nearside Front Upper Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Offside Rear Brake hose bulging under pressure |3.6.B.3|2
Position lamp switch faulty |1.1.A.1|2
Service brake: efficiency below requirements |3.7.C.1a|2
Front passenger door cannot be opened from outside the vehicle |6.2.B.1b|2
Nearside Headlamp not working on dipped beam |1.7.5a|2
Windscreen wiper blade insecure2
Offside Inner Track rod end ball joint has excessive play |2.2.B.1f|2
Horn not loud enough to be heard by another road user |1.6.2b|2
Offside Headlamp insecure |1.7.3|2
Offside Front Body or chassis has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2|2
Offside Front Upper Exhaust has a major leak of exhaust gases |7.1.2|2
Emissions not tested |7.0|2
Offside Inner Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|2
Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|2
Nearside Rear Brake pipe inadequately clipped |3.6.B.1|2
Offside Rear Brake pipe inadequately clipped |3.6.B.1|2
Front brake disc in such a condition that it is seriously weakened2
Nearside Front Brake hose leaking |3.6.A.1|2
Headlamp aim not tested |1.8.A.1c|2
Centre Exhaust system not adequately supported |7.1.1|2
Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
Offside Front Front position lamp|s| not working |1.1.A.3b|2
Stop lamp not working |1.2.1b|2
Exhaust system not adequately supported |7.1.1|2
Driver`s seat insecure |6.2.A.1|2
Nearside Front wheel bearing has excessive play |2.5.A.3c|2
Offside Front Track rod end ball joint has excessive play |2.2.B.1f|2
Offside Inner Front Track rod end ball joint has excessive play |2.2.B.1f|2
Brake pedal has insufficient reserve movement |3.3.A.5|2
Nearside Front Drag link end ball joint has excessive play |2.2.B.1f|2
Nearside Front front brake binding |3.7.B.1|2
Nearside Steering locking device missing |2.2.C.1g|2
Nearside Front Steering component mounting prescribed area is excessively corroded |2.2.C.1h|2
Centre Exhaust mounting missing |7.1.1b|2
Nearside Passenger`s seat cannot be secured in the upright position. |6.2.A.2|2
Nearside Front Shock absorber has a serious fluid leak |2.7.3|2
Offside Rear An item not tested |Manual|2
Offside Indicator tell tale inoperative |1.4.A.2a|2
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
Ball joint has excessive play |2.2.B.1f|2
Offside Rear Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|2
Nearside Inner Track rod end ball joint has excessive play |2.2.B.1f|2
Nearside Front passenger seat cannot be secured in the upright position. |6.2.4|2
Direction indicators flashing less than 60 times a minute |1.4.A.2g|2
Offside Rear Rear fog lamp not working |4.5.1 |a| |ii||2
Parking brake: efficiency below requirements (3.7.B.7)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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