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MOT History from tests of diesel MERCEDES BENZ 300s year 1978

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:76.74%
(The average a diesel MERCEDES BENZ 300 year 1978 passes without issue)
Based on:43 MOT Tests
Most common failuresNo# failures
Nearside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|2
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
Exhaust emits dense blue smoke at idle |7.4.A.1|2
Registration plate lamp issues2
Indicator switch faulty |1.4.A.1|2
Rear Exhaust system not adequately supported |7.1.1|2
Nearside Front position lamp|s| not working |1.1.A.3b|1
Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Front brake caliper has restricted free movement |3.5.1k|1
Offside Front Seat belt retracting mechanism defective |5.2.5b|1
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Rear brake caliper has restricted free movement |3.5.1k|1
Nearside Steering arm has relative movement at its fixings |2.2.B.1h|1
Nearside Rear Stop lamp not working |1.2.1b|1
Brakes imbalanced across an axle1
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Rear Sub-frame rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Rear Sub-frame rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Brake vacuum build up too slow |3.3.E.6|1
Offside Stop lamp not working |1.2.1b|1
Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Front Vehicle structure has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Headlamp aim out of alignment1
Front Track rod end ball joint dust cover excessively damaged or deteriorated so that it no longer prevents the ingress of dirt nearside and offside (2.1.3 (g) (ii))1
Offside Rear Brake hose excessively damaged (1.1.12 (b) (ii))1
Front Upper Suspension arm pin or bush excessively worn nearside and offside (5.3.4 (a) (i))1
Offside Front Valve stem seriously damaged (5.2.3 (j))1
Offside Front Drag link end ball joint has excessive play idler arm to 3 way arm (2.1.3 (b) (i))1
Offside Inner Rear brake disc excessively pitted |3.5.1h|1
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Parking brake: efficiency below requirements |3.7.D.4|1
Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
coil spring fractured |2.4.C.1a|1
Nearside Track rod end ball joint has excessive play |2.2.B.1f|1
Offside Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Brake pipe excessively corroded1
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Power steering pump drive system missing |2.3.6|1
Emissions not tested |7.0|1
Exhaust has a major leak of exhaust gases |7.1.2|1
Mechanical brake component has restricted free movement1
Nearside Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2|1
Offside Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2|1
Service brake: efficiency below requirements |3.7.B.7|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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