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MOT History from tests of diesel MERCEDES BENZ 300s year 1980

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:69.07%
(The average a diesel MERCEDES BENZ 300 year 1980 passes without issue)
Based on:194 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment8
Parking brake: efficiency below requirements |3.7.B.7|8
Registration plate lamp issues7
Brakes imbalanced across an axle7
Offside Rear Suspension component 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|6
Offside Rear fog lamp not working |1.3.2b|6
Brake pipe excessively corroded6
Windscreen wiper does not clear the windscreen effectively6
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|5
Brake hose excessively deteriorated4
Nearside Front Track rod end ball joint has excessive play |2.2.B.1f|3
Registration plate issues3
Rear brake binding3
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|3
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|3
Nearside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|3
Offside Headlamp not working on dipped beam |1.7.5a|2
Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a|2
Rear Exhaust system not adequately supported |7.1.1|2
Exhaust emits an excessive level of metered smoke for a non-turbo charged engine |7.4.B.3b|2
Nearside Headlamp not working on dipped beam |1.7.5a|2
Nearside Front Direction indicator not working |1.4.A.2c|2
Offside Front Seat belt retracting mechanism defective |5.2.5b|2
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Rear parking brake recording little or no effort2
Offside Front coil spring fractured |2.4.C.1a|2
Offside Front Headlamp not working on main beam |1.7.5a|2
Offside Front coil spring broken |2.4.C.1a|2
Offside Front position lamp|s| not working |1.1.A.3b|2
Offside Rear position lamp|s| not working |1.1.A.3b|2
Rear fog lamp not working |1.3.2b|2
Nearside Rear wheel bearing has excessive play |2.6.2|2
Parking brake lever has no reserve travel |3.1.6b|2
Rear brake disc in such a condition that it is seriously weakened2
Offside Rear coil spring fractured |2.4.C.1a|1
Rear Exhaust has a major leak of exhaust gases |7.1.2|1
Centre Exhaust has a major leak of exhaust gases |7.1.2|1
Offside Front Drag link end damaged and unserviceable |2.2.C.1d|1
Offside Front Steering arm has relative movement at its fixings |2.2.B.1h|1
Front Exhaust emits excessive smoke or vapour of any colour |7.4.B.4|1
Nearside Outer Front Track rod end ball joint has excessive play |2.2.B.1f|1
Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|1
Rear Rear fog lamp excessively damaged so that it is not visible from a reasonable distance |1.3.2d|1
Front Driver`s seat cannot be secured in the upright position. |6.2.A.2|1
Offside Front passenger seat cannot be secured in the upright position. |6.2.4|1
Offside Stop lamp not working |1.2.1b|1
Nearside Front Body has a sharp edge caused by corrosion |6.1.C.1|1
Offside Front Body has a sharp edge caused by damage |6.1.C.1|1
Direction indicators not working |1.4.A.2c|1
Hazard warning lamps inoperative |1.4.B.1b|1
Hazard warning switch faulty |1.4.B.1d|1
Nearside Front Seat belt retracting mechanism defective |5.2.5b|1
Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a|1
Offside Bonnet retaining device insecure |8.4.2|1
Nearside Lower Body has a sharp edge caused by damage |6.1.C.1|1
Nearside Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c|1
Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Front brake disc excessively pitted |3.5.1h|1
Rear brake disc excessively pitted |3.5.1h|1
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e|1
Rear Mechanical brake component has restricted free movement1
Nearside Front Seat belt insecurely fixed to the vehicles structure |5.2.1a|1
Offside Rear Direction indicator incorrect colour |1.4.A.2f|1
Nearside Headlamp aim beam image kick up to the offside |1.8|1
Offside Headlamp aim beam image kick up to the offside |1.8|1
Fuel system component leaking |7.2.3|1
Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Driver`s seat insecure |6.2.A.1|1
Offside Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Brake master cylinder fluid level below minimum level |3.6.G.1e|1
Nearside Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Offside 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
Rear Exhaust has a part missing |7.1.1a|1
Rear Exhaust has part of the system excessively deteriorated |7.1.1a|1
Steering system has excessive free play detected at the steering wheel |steering box fitted| |2.2.A.1a|1
Nearside Track rod end has had excessive heat applied |2.2.C.1e|1
Offside Track rod end has had excessive heat applied |2.2.C.1e|1
Nearside Inner Track rod end has had excessive heat applied |2.2.C.1e|1
Offside Inner Track rod end has had excessive heat applied |2.2.C.1e|1
Rear brake application uneven1
rear brakes release unevenly |3.7.B.4|1
Speedometer cannot be illuminated. |6.7.3|1
Battery insecure |1.9.1|1
Offside Rear Brake pipe excessively damaged |3.6.B.2c|1
Offside Front Suspension component mounting prescribed area is excessively corroded Lower sill, suspension arm prescribed area. |2.4.A.3|1
Offside Front Shock absorber has a serious fluid leak |2.7.3|1
Nearside Front Suspension component mounting prescribed area is excessively corroded Inner wheel well, anti roll bar prescribed area. |2.4.A.3|1
Nearside Rear Brake hose bulging under pressure |3.6.B.3|1
Offside Rear Brake hose bulging under pressure |3.6.B.3|1
Fuel pipe leaking leak off pipe area |7.2.3|1
Passenger`s seat cannot be secured in the upright position. |6.2.A.2|1
Nearside Front Brake hose bulging under pressure |3.6.B.3|1
Offside Rear fog lamp tell tale not working |1.3.1b|1
Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Headlamp not working on main beam |1.7.5a|1
Driver`s seat cannot be secured in the upright position. |6.2.A.2|1
Offside Front Passenger`s seat cannot be secured in the upright position. |6.2.A.2|1
Offside Driver`s seat insecure |6.2.A.1|1
Rear Seat belt locking mechanism does not secure or release |5.2.5a|1
Offside Rear Body has a sharp edge caused by damage |6.1.C.1|1
Rear Fuel system component insecure |7.2.1|1
Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Service brake: efficiency below requirements |3.7.B.7|1
Offside front brake binding |3.7.B.1|1
Offside Headlamp aim beam image obviously incorrect dipping incorrect way |1.8.A.1b|1
Centre Track rod end ball joint has excessive play o/s |2.2.B.1f|1
Nearside Front Front position lamp|s| not working |1.1.A.3b|1
Offside Rear Rear position lamp|s| not working |1.1.A.3b|1
Rear fog lamp tell tale not working |1.3.1b|1
Offside Headlamp not working on main beam |1.7.5a|1
Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2|1
Offside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2|1
Offside Inner Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Nearside Outer Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Exhaust has part of the system excessively deteriorated |7.1.1a|1
Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Nearside Front position lamp|s| not working |1.1.A.3b|1
Nearside Front Tie bar/rod ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2|1
Front Tie bar/rod ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2|1
Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Offside Front Suspension component mounting prescribed area is deliberately modified which significantly reduces the original strength |2.4.A.3|1
Offside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Rear Parking brake mechanism/associated mounting prescribed area is excessively corroded |3.1.9|1
Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2|1
Nearside Inner Front Steering locking device missing |2.2.C.1g|1
Offside Inner Front Steering locking device missing |2.2.C.1g|1
Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Rear Rear position lamp|s| not working |1.1.A.3b|1
Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Nearside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|1
Offside Rear Anti-roll bar linkage fractured |2.4.G.1|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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