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MOT History from tests of petrol MERCEDES BENZ 450s year 1971

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:69.47%
(The average a petrol MERCEDES BENZ 450 year 1971 passes without issue)
Based on:380 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment25
Rear brake binding13
Brake hose excessively deteriorated11
Windscreen wiper does not clear the windscreen effectively11
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|10
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|10
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|9
Registration plate lamp issues8
Nearside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|7
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|7
Parking brake: efficiency below requirements |3.7.B.7|7
Offside front brake binding |3.7.B.1|6
Registration plate issues6
Brake pipe excessively corroded6
Rear Exhaust has a major leak of exhaust gases |7.1.2|6
Horn not working |1.6.2a|5
Nearside Stop lamp not working |1.2.1b|5
Battery insecure |1.9.1|5
Nearside Headlamp not working on dipped beam |1.7.5a|5
Brakes imbalanced across an axle5
Nearside front brake binding |3.7.B.1|4
Offside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|4
Rear parking brake recording little or no effort4
Indicator switch faulty |1.4.A.1|4
Exhaust has a major leak of exhaust gases |7.1.2|4
Offside Stop lamp not working |1.2.1b|4
Front Windscreen wiper not operating automatically when switched on |8.2.1b|4
Nearside Headlamp not working on main beam |1.7.5a|3
Driver`s seat cannot be secured in the upright position. |6.2.A.2|3
Rear Mechanical brake component has restricted free movement3
Nearside Rear Suspension component mounting prescribed area is inadequately repaired |2.4.A.3|3
Rear Fuel hose leaking |7.2.3|3
Front Exhaust has a major leak of exhaust gases |7.1.2|3
Rear fog lamp tell tale not working |1.3.1b|2
Speedometer cannot be illuminated. |6.7.3|2
Nearside Front Seat belt retracting mechanism defective |5.2.5b|2
Mechanical brake component has restricted free movement2
Nearside Front Seat belt locking mechanism does not secure or release |5.2.5a|2
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|2
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Offside Front Steering component mounting prescribed area is excessively corroded |2.2.C.1h|2
Nearside Front Sub-frame attachment rubber mounting bonding deteriorated resulting in excessive movement Of front |2.4.G.2|2
Nearside Seat belt anchorage prescribed area is excessively corroded Inner sill to floor |5.2.6|2
Offside Seat belt anchorage prescribed area is excessively corroded Inner sill to floor |5.2.6|2
Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b|2
Nearside Front Headlamp not working on dipped beam |1.7.5a|2
Nearside Front Seat belt anchorage prescribed area is inadequately repaired |5.2.6|2
Nearside Front Suspension component mounting prescribed area is inadequately repaired |2.4.A.3|2
Offside Front Suspension component mounting prescribed area is inadequately repaired |2.4.A.3|2
Offside Rear Suspension component mounting prescribed area is inadequately repaired |2.4.A.3|2
Offside Front position lamp|s| not working |1.1.A.3b|2
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Front brake application uneven2
Offside Rear Lower Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Nearside Rear Body has a sharp edge caused by corrosion |6.1.C.1|2
Nearside Front front brake binding |3.7.B.1|2
Offside Front front brake binding |3.7.B.1|2
Nearside Front Headlamp aim beam image obviously incorrect |1.8.A.1b|2
Offside Front Wheel bolt|s| missing |4.2.A.1e|2
Nearside Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Nearside Front position lamp|s| not working |1.1.A.3b|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 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
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|2
Nearside Indicator switch faulty |1.4.A.1|2
Offside Rear Brake hose leaking |3.6.A.1|2
Offside Rear position lamp|s| not working |1.1.A.3b|2
Offside Front Front wheel bearing has excessive play |2.5.A.3c|2
Front Steering damper gland failed and leaking oil |2.2.C.1e|2
Rear Exhaust system not adequately supported |7.1.1|2
Windscreen washer not working 2
Nearside Front Upper Suspension arm has excessive play in a pin/bush wishbone |2.4.G.2|1
Offside Inner Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Front Service brake indicates brake bind |3.7.D.2a|1
Offside Front Service brake indicates brake bind |3.7.D.2a|1
Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b|1
Nearside Passenger`s seat cannot be secured in the upright position. |6.2.A.2|1
Nearside Front Front passenger seat cannot be secured in the upright position. |6.2.4|1
Offside Front Front passenger seat cannot be secured in the upright position. |6.2.4|1
Offside Front Driver`s seat cannot be secured in the upright position. |6.2.A.2|1
Nearside Front Seat belt anchorage prescribed area is excessively corroded floor |5.2.6|1
Offside Front Seat belt anchorage prescribed area is excessively corroded floor |5.2.6|1
Offside Front Brake hose excessively damaged |3.6.B.4d|1
Rear Exhaust has part of the system excessively deteriorated |7.1.1a|1
An item not tested |Manual|1
Emissions not tested |7.3.A.1|1
Headlamp not working on dipped beam Both |1.7.5a|1
Headlamp not working on main beam Both |1.7.5a|1
Rear position lamp|s| adversely affected by the operation of another lamp Both |1.1.A.3f|1
Direction indicators adversely affected by the operation of another lamp Rear |1.4.A.2h|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
Service brake: efficiency below requirements |3.7.B.7|1
Nearside Front Front position lamp|s| not working |1.1.A.3b|1
Nearside Rear Rear position lamp|s| not working |1.1.A.3b|1
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Front Seat belt anchorage prescribed area is inadequately repaired |5.2.6|1
Nearside Seat belt locking mechanism does not secure or release |5.2.5a|1
Offside Seat belt retracting mechanism defective |5.2.5b|1
Front Fuel pipe leaking |7.2.3|1
Offside Front coil spring worn so that its cross sectional area is reduced and seriously weakened |2.4.C.1b|1
Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|1
Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Front Sub-frame rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2|1
Offside Front Sub-frame rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2|1
Nearside Rear rear brake recording little or no effort |3.7.B.5a|1
Offside Rear rear brake recording little or no effort |3.7.B.5a|1
Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Front Exhaust has a major leak of exhaust gases |7.1.2|1
Nearside Front Passenger`s seat cannot be secured in the upright position. |6.2.A.2|1
Nearside Parking brake operation is causing the vehicle to swerve to the offside |3.7.C.3a|1
Offside Front Service brake is causing the vehicle to swerve to the offside |3.7.C.2|1
Offside Rear Service brake is causing the vehicle to swerve to the offside |3.7.C.2|1
Centre Exhaust mounting missing |7.1.1b|1
Offside Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Offside Front Suspension arm rubber mounting deteriorated resulting in excessive movement |2.4.G.2|1
Front Brake pedal spongy |3.3.B.1b|1
Front Brake pedal creeps with the vacuum fully depleted |3.3.C.2|1
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f|1
Nearside Rear Direction indicator not working |1.4.A.2c|1
Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|1
Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|1
Front passenger door cannot be opened from outside the vehicle |6.2.B.1b|1
Rear Exhaust mounting missing |7.1.1b|1
Nearside Front Track rod end ball joint has excessive play |2.2.B.1f|1
Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Body has a projection caused by corrosion |6.1.C.1|1
Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Rear An item not tested |Manual|1
Centre Exhaust system not adequately supported |7.1.1|1
Centre Rear Exhaust has a major leak of exhaust gases |7.1.2|1
Offside Front Seat belt locking mechanism does not secure or release |5.2.5a|1
Nearside Inner Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Outer Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Front Body or chassis has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Rear Body or chassis has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Rear Shock absorber has negligible damping effect |2.7.5|1
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|1
Offside Front Ball joint has excessive play |2.2.B.1f|1
Nearside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2|1
Direction indicators flashing less than 60 times a minute |1.4.A.2g|1
Nearside Rear Wheel bolt|s| missing |4.2.A.1e|1
Offside Rear Wheel bolt|s| missing |4.2.A.1e|1
Rear position lamp|s| not working |1.1.A.3b|1
Nearside Rear Suspension component mounting prescribed area is fractured |2.4.A.3|1
Nearside Suspension component mounting prescribed area is inadequately repaired |2.4.A.3|1
Offside Suspension component mounting prescribed area is inadequately repaired |2.4.A.3|1
Offside Front Exhaust has a major leak of exhaust gases |7.1.2|1
Exhaust emits dense blue smoke at idle |7.3.A.2b|1
Exhaust emits visible black smoke at idle |7.3.A.2b|1
Offside Rear Stop lamp not working |1.2.1b|1
Nearside Rear Stop lamp not working |1.2.1b|1
Nearside Front Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Direction indicators flashing more than 120 times a minute |1.4.A.2g|1
Nearside Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Rear Fuel system component leaking |7.2.3|1
Nearside Rear Stop lamp|s| not working |4.3.1 |a| |ii||1
Offside Front Lower Front suspension ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2|1
front brakes release unevenly |3.7.B.4|1
Nearside Front Brake hose twisted |found during steering lock to lock check| |2.2.D.2b|1
Service brake: efficiency below requirements |3.7.D.4|1
Offside Windscreen wiper blade deteriorated |8.2.2|1
Windscreen wiper blade insecure1
Offside Front Body has a sharp edge caused by corrosion |6.1.C.1|1
Nearside Rear An item not tested |Manual|1
Offside Rear An item not tested |Manual|1
Offside Headlamp aim headlamp not in good working order adversely affecting beam image |1.2.4b|1
Rear Stop lamp not working |1.2.1b|1
Offside Rear Sub-frame attachment bracket/mounting corroded and its strength is seriously reduced |2.4.G.1|1
Offside Front Seat belt retracting mechanism defective |5.2.5b|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 Brake hose leaking |3.6.A.1|1
Brake pipe inadequately clipped |3.6.B.1|1
Nearside Rear Lower Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Front Windscreen wiper blade deteriorated |8.2.2|1
Offside Front Windscreen wiper blade deteriorated |8.2.2|1
Front Body has a sharp edge caused by corrosion |6.1.C.1|1
Offside Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Rear brake application uneven1
Nearside Rear Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Offside Rear Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Nearside Body or chassis has an inadequate repair, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Hazard warning switch faulty |1.4.B.1d|1
Nearside Front Seat belt insecurely fixed to the vehicles structure |5.2.1a|1
Offside Front Seat belt insecurely fixed to the vehicles structure |5.2.1a|1
Nearside Front Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Offside Front Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Front Direction indicator incorrect colour |1.4.A.2f|1
Nearside Front Driver`s seat insecure |6.2.A.1|1
Offside Front Driver`s seat insecure |6.2.A.1|1
Nearside Front Upper Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Rear Upper Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Rear Upper Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Rear Fuel pipe leaking |7.2.3|1
Offside Rear Lower Radius arm has excessive play in a pin/bush |2.4.G.2|1
Offside Front Vehicle structure has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a|1
Nearside Headlamp not in a clean condition affecting beam image |1.2.4a|1
Nearside Steering pivot point has excessive play |2.2.B.1g|1
Nearside front brake juddering severely |3.7.A.2b|1
Power steering component|s| leaking |2.3.3b|1
Front Headlamp not working on dipped beam |1.7.5a|1
All position lamps not working |1.1.A.3b|1
Nearside Front Sub-frame rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Front Sub-frame rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Front Direction indicators flashing more than 120 times a minute |1.4.A.2g|1
Nearside Front Direction indicators flashing more than 120 times a minute |1.4.A.2g|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
Nearside Front Headlamp insecure |1.7.3|1
Nearside Front Brake hose excessively damaged |3.6.B.4d|1
Power steering pipe|s| or hose|s| leaking |2.3.3b|1
Fuel pipe excessively damaged fuel filter |7.2.2|1
Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f|1
Brake hose has insufficient room to move1
Headlamp switch insecure |1.7.1|1
Offside Rear Brake pipe inadequately clipped |3.6.B.1|1
Offside Front Brake pipe inadequately supported |3.6.B.1|1
Driver`s seat insecure |6.2.A.1|1
Fuel system component insecure |7.2.1|1
Offside Inner Front Track rod end ball joint has excessive play |2.2.B.1f|1
Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2|1
Offside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2|1
Offside Rear Body has a sharp edge caused by corrosion |6.1.C.1|1
Nearside Front passenger seat insecure |6.2.3|1
Centre Exhaust has a major leak of exhaust gases |7.1.2|1
Offside Stop lamp excessively damaged so that it is not visible from a reasonable distance |1.2.1d|1
Exhaust has part of the system excessively deteriorated |7.1.1a|1
Offside Front Front position lamp|s| not working |1.1.A.3b|1
Offside Rear Rear position lamp|s| obscured more than 50% very dim |1.1.A.3c|1
Offside Rear Fuel hose leaking filter hose incorrectly repair |7.2.3|1
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings sill marked yellow |6.1.B.2|1
Direction indicators not working |1.4.A.2c|1
Power steering malfunctioning |2.3.3a|1
Offside Drag link end ball joint has excessive play |2.2.B.1f|1
Offside Outer Front Brake pipe inadequately clipped |3.6.B.1|1
Exhaust has a major leak of exhaust gases (6.1.2 (a))1
Drivers seat backrest cannot be secured in the upright position. (6.2.5 (b) (ii))1
Nearside Front Position lamp not working (4.2.1 (a) (ii))1
Headlamp not working on main beam WORKING ON FLASH BUT NOT ON MAIN BEAM ( BOTH ) (4.1.1 (a) (ii))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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