MOT History from tests of petrol MERCEDES BENZ 420s year 1977

Review the list of common MERCEDES BENZ 420 failures below or to perform a specific mot history check on your MERCEDES BENZ then use our popular KnowYourCar service

mot history

Pass percent:71.43%

(The average a petrol MERCEDES BENZ 420 year 1977 passes without issue)

Based on:42 MOT Tests

Most common failures	No# failures
Windscreen wiper does not clear the windscreen effectively	5
Headlamp aim out of alignment	5
Brakes imbalanced across an axle	3
Registration plate lamp issues	2
Offside Front Seat belt retracting mechanism defective \|5.2.5b\|	2
Offside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Offside front brake binding \|3.7.B.1\|	2
Rear brake binding	2
Offside Inner Track rod end ball joint has excessive play \|2.2.B.1f\|	2
Nearside Front Front position lamp\|s\| does not face the front \|1.1.A.3a\|	1
Offside Front Front position lamp\|s\| does not face the front \|1.1.A.3a\|	1
Nearside Front Tie bar/rod locating pin locking device not properly locked \|2.4.G.3b\|	1
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	1
Offside Front Seat belt damaged sufficient to obstruct correct operation of the belt \|5.2.2a\|	1
Offside Front Driver`s seat fore and aft adjustment mechanism not functioning as intended. \|6.2.A.3\|	1
Offside Rear Stop lamp not working \|1.2.1b\|	1
Nearside Rear Suspension component mounting prescribed area is excessively corroded inner wheel arch \|2.4.A.3\|	1
Offside Rear Suspension component mounting prescribed area is excessively corroded inner and outer sill \|2.4.A.3\|	1
Offside Front Lower Suspension arm corroded and seriously weakened \|2.4.G.1\|	1
Brake hose excessively deteriorated	1
Nearside Rear Fuel hose leaking \|7.2.3\|	1
Nearside Rear Suspension component mounting prescribed area is inadequately repaired \|2.4.A.3\|	1
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Offside Rear Brake pipe inadequately clipped \|3.6.B.1\|	1
Offside Front coil spring incomplete \|2.4.C.1a\|	1
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	1
Service brake: efficiency below requirements \|3.7.B.7\|	1
All position lamps not working \|1.1.A.3b\|	1
Nearside Headlamp not working on dipped beam \|1.7.5a\|	1
Offside Headlamp not working on dipped beam \|1.7.5a\|	1
Nearside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Offside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Nearside Front Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Offside Front Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Nearside front brake binding \|3.7.B.1\|	1
Offside Front Seat belt locking mechanism does not secure or release \|5.2.5a\|	1
Nearside Front Front position lamp\|s\| incorrect colour \|1.1.A.3e\|	1
Parking brake is not capable of being maintained in operation by direct mechanical action only \|3.1.2\|	1
Offside Rear position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	1
Horn not working \|1.6.2a\|	1
Brake pipe excessively corroded	1
Offside Front Front position lamp\|s\| incorrect colour \|1.1.A.3e\|	1
Nearside Steering pivot point has excessive play \|2.2.B.1g\|	1
Offside Front Shock absorber has a serious fluid leak \|2.7.3\|	1
Position lamp switch insecure \|1.1.A.1\|	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

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.

Got suggestions? We’re improving this section all the time. If you have any suggestions, please let us know.

Most common failures	No# failures
Windscreen wiper does not clear the windscreen effectively	5
Headlamp aim out of alignment	5
Brakes imbalanced across an axle	3
Registration plate lamp issues	2
Offside Front Seat belt retracting mechanism defective \|5.2.5b\|	2
Offside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Offside front brake binding \|3.7.B.1\|	2
Rear brake binding	2
Offside Inner Track rod end ball joint has excessive play \|2.2.B.1f\|	2
Nearside Front Front position lamp\|s\| does not face the front \|1.1.A.3a\|	1
Offside Front Front position lamp\|s\| does not face the front \|1.1.A.3a\|	1
Nearside Front Tie bar/rod locating pin locking device not properly locked \|2.4.G.3b\|	1
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	1
Offside Front Seat belt damaged sufficient to obstruct correct operation of the belt \|5.2.2a\|	1
Offside Front Driver`s seat fore and aft adjustment mechanism not functioning as intended. \|6.2.A.3\|	1
Offside Rear Stop lamp not working \|1.2.1b\|	1
Nearside Rear Suspension component mounting prescribed area is excessively corroded inner wheel arch \|2.4.A.3\|	1
Offside Rear Suspension component mounting prescribed area is excessively corroded inner and outer sill \|2.4.A.3\|	1
Offside Front Lower Suspension arm corroded and seriously weakened \|2.4.G.1\|	1
Brake hose excessively deteriorated	1
Nearside Rear Fuel hose leaking \|7.2.3\|	1
Nearside Rear Suspension component mounting prescribed area is inadequately repaired \|2.4.A.3\|	1
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Offside Rear Brake pipe inadequately clipped \|3.6.B.1\|	1
Offside Front coil spring incomplete \|2.4.C.1a\|	1
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	1
Service brake: efficiency below requirements \|3.7.B.7\|	1
All position lamps not working \|1.1.A.3b\|	1
Nearside Headlamp not working on dipped beam \|1.7.5a\|	1
Offside Headlamp not working on dipped beam \|1.7.5a\|	1
Nearside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Offside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Nearside Front Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Offside Front Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Nearside front brake binding \|3.7.B.1\|	1
Offside Front Seat belt locking mechanism does not secure or release \|5.2.5a\|	1
Nearside Front Front position lamp\|s\| incorrect colour \|1.1.A.3e\|	1
Parking brake is not capable of being maintained in operation by direct mechanical action only \|3.1.2\|	1
Offside Rear position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	1
Horn not working \|1.6.2a\|	1
Brake pipe excessively corroded	1
Offside Front Front position lamp\|s\| incorrect colour \|1.1.A.3e\|	1
Nearside Steering pivot point has excessive play \|2.2.B.1g\|	1
Offside Front Shock absorber has a serious fluid leak \|2.7.3\|	1
Position lamp switch insecure \|1.1.A.1\|	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

MOT History from tests of petrol MERCEDES BENZ 420s year 1977

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