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MOT History from tests of diesel MERCEDES BENZ 300s year 1971

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:72.04%
(The average a diesel MERCEDES BENZ 300 year 1971 passes without issue)
Based on:211 MOT Tests
Most common failuresNo# failures
Brake pipe excessively corroded19
Headlamp aim out of alignment15
Parking brake: efficiency below requirements |3.7.B.7|14
Rear parking brake recording little or no effort6
Brake hose excessively deteriorated5
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|5
Offside Stop lamp not working |1.2.1b|4
Steering system has excessive free play detected at the steering wheel |steering box fitted| |2.2.A.1a|4
Registration plate issues4
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|4
Registration plate lamp issues3
Offside Headlamp not working on dipped beam |1.7.5a|3
Nearside Front Steering locking device missing |2.2.C.1g|2
Nearside Rear coil spring cracked |2.4.C.1a|2
Nearside Headlamp not working on dipped beam |1.7.5a|2
Nearside Rear Suspension component mounting prescribed area is inadequately repaired |2.4.A.3|2
Nearside Inner Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
Emissions not tested |7.0|2
Anti-lock braking system warning lamp indicates an ABS fault2
Fuel pipe leaking |7.2.3|2
Nearside Front Shock absorber has a serious fluid leak |2.7.3|2
Nearside Stop lamp not working |1.2.1b|2
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|2
Rear brake application uneven2
Offside Rear Shock absorber has a serious fluid leak |2.7.3|2
Windscreen wiper does not clear the windscreen effectively2
Nearside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|2
Nearside Rear rear brake recording little or no effort |3.7.B.5a|2
Brakes imbalanced across an axle2
Rear brake binding2
Offside Front Headlamp aim beam image kick up to the offside |1.8|1
Nearside Front Headlamp aim beam image kick up to the offside |1.8|1
Offside rear brake recording little or no effort |3.7.B.5a|1
Service brake: efficiency below requirements |3.7.B.7|1
Offside Rear Direction indicator not working |1.4.A.2c|1
Windscreen wiper not operating automatically when switched on |8.2.1b|1
Offside Headlamp not working on main beam |1.7.5a|1
Offside Inner Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a|1
Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a|1
Rear Suspension has inadequate clearance with the bump stop |2.4.A.1a|1
Nearside Outer Front Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2|1
Offside Outer Front Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2|1
Exhaust has a major leak of exhaust gases |7.1.2|1
Rear Exhaust has part of the system excessively deteriorated |7.1.1a|1
Brake load sensing valve linkage defective and function impaired |3.6.E.3|1
Horn not working |1.6.2a|1
Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b|1
Offside Headlamp aim beam image obviously incorrect |1.8.A.1b|1
Centre Exhaust has a major leak of exhaust gases |7.1.2|1
Front Exhaust system not adequately supported |7.1.1|1
Offside Front Brake hose bulging under pressure |3.6.B.3|1
Offside Rear Fluid suspension pipe leaking |2.4.D.2|1
Nearside Side repeater not working |1.4.A.2c|1
Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2|1
Fuel hose leaking |7.2.3|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
Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Offside Front Wheel bolt|s| missing |4.2.A.1e|1
Rear Fuel tank leaking |7.2.3|1
Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|1
Exhaust has part of the system excessively deteriorated |7.1.1a|1
Offside Front Body has a sharp edge caused by corrosion |6.1.C.1|1
Nearside Rear position lamp|s| not working |1.1.A.3b|1
Offside Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Fuel pipe leaking Front injector pipe leaking |7.2.3|1
Nearside front brake binding |3.7.B.1|1
Nearside Front Brake hose bulging under pressure |3.6.B.3|1
Parking brake mechanism/associated mounting prescribed area is excessively corroded Mounting in centre of vehicle. |3.1.9|1
Parking brake lever has no reserve travel |3.1.6b|1
Offside Rear fog lamp not working |1.3.2b|1
Nearside Headlamp excessively deteriorated so that the light output is severely reduced Has water inside lamp effecting output and image. |1.7.5a|1
Offside Headlamp excessively deteriorated so that the light output is severely reduced Has water inside lamp effecting output and image. |1.7.5a|1
Offside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Front Suspension component mounting prescribed area is excessively corroded Sill and floor. |2.4.A.3|1
Offside Front Suspension component mounting prescribed area is excessively corroded Sill and floor. |2.4.A.3|1
Nearside Front Suspension component mounting prescribed area is excessively corroded Inner wing,top shock mount. |2.4.A.3|1
Offside Front Suspension component mounting prescribed area is excessively corroded Inner wing, top shock mount. |2.4.A.3|1
Fuel cap/sealing device ineffective temp cap fitted |6.1.3 |b| |i||1
Nearside Headlamp light intensity severely reduced due to bad earth |4.1.4 |a||1
Nearside Headlamp not working on main beam |4.1.1 |a| |ii||1
Offside Rear Parking brake inoperative on one side |1.4.1 |a||1
Offside Front Inner Vehicle structure has excessive corrosion which adversely affects braking or steering wing near shock mounting point |6.1.1 |c| |ii||1
Rear Exhaust system insecure box rubber mountings not fitted |6.1.2 |a||1
Nearside Rear Shock absorbers has a serious fluid leak1
Parking brake efficiency below requirements |1.4.2 |a| |i||1
Offside Seat belt anchorage prescribed area is fractured |5.2.6|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 has excessive play in a lower suspension ball joint |2.5.B.1a|1
Offside Rear Suspension component mounting prescribed area is fractured |2.4.A.3|1
Nearside Front Steering pivot point has excessive play |2.2.B.1g|1
Rear Fluid suspension has no suspension movement |2.4.D.5|1
Nearside Track rod end ball joint has excessive play |2.2.B.1f|1
Exhaust system not adequately supported |7.1.1|1
Offside Front Brake hose leaking |3.6.A.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
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Rear coil spring fractured |2.4.C.1a|1
Offside Rear coil spring fractured |2.4.C.1a|1
Nearside Front Headlamp not working on main beam |1.7.5a|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 Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Inner Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Rear Exhaust system not adequately supported |7.1.1|1
Offside Outer Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Inner Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Rear Sub-frame has excessive play in a pin/bush |2.4.G.2|1
Offside Rear Sub-frame has excessive play in a pin/bush |2.4.G.2|1
Hazard warning lamps inoperative |1.4.B.1b|1
Offside Front Body has a sharp edge caused by damage |6.1.C.1|1
Nearside Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Offside Front position lamp|s| excessively damaged so that it is not visible from a reasonable distance |1.1.A.3d|1
Front Exhaust has a major leak of exhaust gases |7.1.2|1
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Rear wheel bearing has excessive play |2.6.2|1
Offside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|1
Nearside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f|1
Nearside Rear Wheel nut|s| loose |4.2.A.1e|1
Exhaust emits excessive dense blue smoke during acceleration |7.4.A2|1
Offside Track rod end ball joint has excessive play |2.2.B.1f|1
Offside Side repeater incorrect colour |1.4.A.2f|1
Exhaust emits clearly visible black smoke during acceleration |7.4.A2|1
Nearside Front wheel bearing rough when rotated |2.5.A.2|1
Nearside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Offside Front Direction indicator incorrect colour |1.4.A.2f|1
Centre Stop lamp not working |1.2.1b|1
Offside Front coil spring incomplete |2.4.C.1a|1
Stop lamp remains on when the brakes are released1
Offside Front Direction indicator incomplete |1.5.A1b|1
Offside Rear Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Exhaust mounting missing |7.1.1b|1
Nearside Headlamp not working on main beam |1.7.5a|1
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e|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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