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

Review the list of common MERCEDES BENZ 450SL failures below or to perform a specific mot history check on your MERCEDES BENZ then use our popular KnowYourCar service

mot history
Pass percent:71.19%
(The average a petrol MERCEDES BENZ 450SL year 1971 passes without issue)
Based on:177 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment18
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|4
Rear brake binding4
Indicator switch faulty |1.4.A.1|4
Windscreen wiper does not clear the windscreen effectively3
Battery insecure |1.9.1|3
Registration plate lamp issues3
Brakes imbalanced across an axle3
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|3
Offside Front position lamp|s| not working |1.1.A.3b|3
Steering system has excessive free play detected at the steering wheel |steering box fitted| |2.2.A.1a|2
Rear Exhaust has a major leak of exhaust gases |7.1.2|2
Brake pipe excessively corroded2
Exhaust system not adequately supported |7.1.1|2
Offside Headlamp aim beam image kick up to the offside |1.8|2
Hazard warning switch faulty |1.4.B.1d|2
Offside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Exhaust mounting missing |7.1.1b|1
Rear Exhaust system not adequately supported |7.1.1|1
Mechanical brake component has restricted free movement1
Nearside Front Seat belt locking mechanism does not secure or release |5.2.5a|1
Service brake: efficiency below requirements |3.7.B.7|1
Nearside Front position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Brake pedal anti-slip provision missing |3.3.A.1b|1
Nearside Front Valve stem seriously damaged |4.1.D.1e|1
Offside Front Valve stem seriously damaged |4.1.D.1e|1
Nearside Rear Valve stem seriously damaged |4.1.D.1e|1
Offside Rear Valve stem seriously damaged |4.1.D.1e|1
Exhaust emits clearly visible black smoke during acceleration |7.3.A.2c|1
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
Rear Mechanical brake component has restricted free movement1
Nearside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Seat belt retracting mechanism defective |5.2.5b|1
Offside Front Headlamp not working on main beam |1.7.5a|1
Offside Front Brake hose leaking |3.6.A.1|1
Nearside Rear Brake hose leaking |3.6.A.1|1
Fuel system component leaking |7.2.3|1
Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|1
Offside Outer Front Track rod end ball joint has excessive play |2.2.B.1f|1
Nearside Inner Track rod end ball joint has excessive play |2.2.B.1f|1
Nearside Front Brake hose twisted |found during steering lock to lock check| |2.2.D.2b|1
Offside Rear Suspension component mounting prescribed area is excessively corroded inner outer sill |2.4.A.3|1
Main beam `tell-tale` not working |1.7.4c|1
Nearside Headlamp not working on dipped beam |1.7.5a|1
Offside Headlamp not working on dipped beam |1.7.5a|1
Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a|1
Offside Front Headlamp aim beam image kick up to the offside |1.8|1
Brake fluid warning lamp illuminated |3.6.G.2|1
Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b|1
Hazard warning lamps inoperative |1.4.B.1b|1
Nearside Rear position lamp|s| not working |1.1.A.3b|1
Offside Direction indicators flashing more than 120 times a minute |1.4.A.2g|1
Nearside Steering locking device missing |2.2.C.1g|1
Nearside Inner Steering locking device missing |2.2.C.1g|1
Central Steering locking device missing |2.2.C.1g|1
Offside Steering locking device missing |2.2.C.1g|1
Offside Inner Steering locking device missing |2.2.C.1g|1
Nearside Front Sub-frame attachment rubber mounting bonding deteriorated resulting in excessive movement |2.4.G.2|1
Offside Front Sub-frame attachment rubber mounting bonding deteriorated resulting in excessive movement |2.4.G.2|1
Nearside Front Sub-frame attachment rubber mounting bonding deteriorated resulting in excessive movement rear |2.4.G.2|1
Offside Front Sub-frame attachment rubber mounting bonding deteriorated resulting in excessive movement rear |2.4.G.2|1
Service brake: efficiency below requirements |3.7.D.4|1
Speedometer cannot be illuminated. |6.7.3|1
Nearside Front position lamp|s| not working |1.1.A.3b|1
Offside Front Steering locking device missing |2.2.C.1g|1
Centre Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Front Exhaust has a major leak of exhaust gases |7.1.2|1
Centre Exhaust system not adequately supported |7.1.1|1
Brake master cylinder/servo mounting prescribed area is excessively corroded |3.6.C.3|1
Nearside Seat belt anchorage prescribed area is excessively corroded inner sill |5.2.6|1
Offside Seat belt anchorage prescribed area is excessively corroded inner sill |5.2.6|1
Offside Seat belt retracting mechanism defective |5.2.5b|1
Brake hose excessively deteriorated1
Rear parking brake recording little or no effort1
Nearside Rear Suspension component mounting prescribed area is inadequately repaired |2.4.A.3|1
Offside Rear Suspension component mounting prescribed area is inadequately repaired |2.4.A.3|1
Offside front brake binding |3.7.B.1|1
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings jack point inner and outher |6.1.B.2|1
Offside Rear Rear fog lamp not working |1.3.2b|1
Offside Rear Headlamp not working on dipped beam |1.7.5a|1
Exhaust emits dense blue smoke at idle |7.3.A.2b|1
Exhaust emits excessive dense blue smoke during acceleration |7.3.A.2c|1
Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|1
Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f|1
Nearside Rear Brake hose bulging under pressure |3.6.B.3|1
Offside Track rod end ball joint has excessive play |2.2.B.1f|1
Offside Front Seat belt retracting mechanism defective |5.2.5b|1
Offside Rear Suspension component mounting prescribed area is fractured |2.4.A.3|1
Horn not working (7.7 (a) (ii))1
Nearside Seat belt anchorage prescribed area strength or continuity significantly reduced (7.1.1 (a) (i))1
Offside Seat belt anchorage prescribed area strength or continuity significantly reduced (7.1.1 (a) (i))1
Exhaust emits excessive dense blue smoke during acceleration (8.2.1.2 (g))1
Nearside Front Lower Vehicle structure corroded to the extent that the rigidity of the assembly is significantly reduced (6.1.1 (c) (i))1
Offside Front Integral body structure or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting (6.2.2 (d) (i))1
Offside Rear Integral body structure or chassis has excessive corrosion, seriously affecting its strength within 30cm of a body mounting (6.2.2 (d) (i))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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