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MOT History from tests of petrol PORSCHE 911s year 1980

Review the list of common PORSCHE 911 failures below or to perform a specific mot history check on your PORSCHE then use our popular KnowYourCar service

mot history
Pass percent:74.76%
(The average a petrol PORSCHE 911 year 1980 passes without issue)
Based on:3,661 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment310
Rear brake binding102
Registration plate lamp issues99
Parking brake: efficiency below requirements |3.7.B.7|81
Exhaust emissions carbon monoxide content excessive |7.3.B.1a|76
Rear parking brake recording little or no effort75
Offside Rear fog lamp not working |1.3.2b|72
Windscreen wiper does not clear the windscreen effectively71
Registration plate issues58
Horn not working |1.6.2a|51
Brake pipe excessively corroded47
Brake hose excessively deteriorated42
Rear fog lamp not working |1.3.2b|39
Brakes imbalanced across an axle37
Service brake: efficiency below requirements |3.7.B.7|35
Offside Front position lamp|s| not working |1.1.A.3b|31
Nearside front brake binding |3.7.B.1|28
Nearside Front position lamp|s| not working |1.1.A.3b|28
Rear fog lamp tell tale not working |1.3.1b|28
Offside front brake binding |3.7.B.1|27
Windscreen washer not working 23
Nearside Stop lamp not working |1.2.1b|22
Offside Rear Rear fog lamp not working |1.3.2b|22
Exhaust emissions hydrocarbon content excessive |7.3.B.1b|20
Offside Headlamp not working on main beam |1.7.5a|18
Nearside Rear Direction indicator not working |1.4.A.2c|18
Offside Stop lamp not working |1.2.1b|17
Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|16
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|16
Nearside Front front brake binding |3.7.B.1|16
Rear Rear fog lamp not working |1.3.2b|15
Exhaust has a major leak of exhaust gases |7.1.2|15
Offside Front front brake binding |3.7.B.1|15
Nearside Headlamp not working on dipped beam |1.7.5a|14
Nearside Headlamp not working on main beam |1.7.5a|14
Rear Mechanical brake component has restricted free movement14
Offside Front Direction indicator not working |1.4.A.2c|14
Offside Headlamp not working on dipped beam |1.7.5a|13
Offside Rear fog lamp missing |1.3.2a|13
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|13
Offside Headlamp aim beam image obviously incorrect |1.8.A.1b|13
Offside Rear position lamp|s| not working |1.1.A.3b|12
Offside Side repeater not working |1.4.A.2c|12
Front brake application uneven11
Battery insecure |1.9.1|11
Nearside Front Direction indicator not working |1.4.A.2c|11
Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b|11
Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|10
Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|10
Mechanical brake component has restricted free movement10
Nearside Side repeater not working |1.4.A.2c|10
Offside Rear Direction indicator not working |1.4.A.2c|10
Parking brake lever has no reserve travel |3.1.6b|9
Nearside Rear position lamp|s| not working |1.1.A.3b|9
Offside Rear Stop lamp not working |1.2.1b|9
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|9
Nearside Front Brake hose bulging under pressure |3.6.B.3|9
Offside Front Brake hose bulging under pressure |3.6.B.3|9
Steering column top bearing excessively worn |2.1.2c|9
Hazard warning tell tale not working correctly |1.4.B.1e|9
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|8
Nearside Rear Stop lamp not working |1.2.1b|8
Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|8
Nearside Front Headlamp not working on dipped beam |1.7.5a|8
Rear Exhaust has a major leak of exhaust gases |7.1.2|8
Windscreen has damage8
Nearside Rear front brake binding |3.7.B.1|8
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|7
Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|7
Nearside Front wheel bearing has excessive play |2.5.A.3c|7
Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|7
Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|7
Nearside Headlamp aim beam image kick up to the offside |1.8|7
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|7
Offside Rear Brake hose bulging under pressure |3.6.B.3|6
Dipswitch operation does not extinguish all main beam headlamps leaving at least one pair of dipped beam headlamps |1.7.4b|6
An item not tested |Manual|6
Headlamp not working on main beam |1.7.5a|6
Rear fog lamp switch missing |1.3.1a|6
Nearside Front Side repeater not working |1.4.A.2c|6
Offside Front Side repeater not working |1.4.A.2c|6
Nearside Rear fog lamp not working |1.3.2b|6
Hazard warning switch faulty |1.4.B.1d|6
Driver`s seat insecure |6.2.A.1|6
Offside Rear Wheel nut|s| missing |4.2.A.1e|6
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|6
Offside Headlamp aim beam image kick up to the offside |1.8|6
Offside Steering rack gaiter split |2.2.D.2d|6
Dipswitch operation does not deflect all main beam headlamps to make them dipped beams |1.7.4b|6
Headlamp switch faulty |1.7.1|5
Fuel cap/sealing device sealing washer deteriorated |7.2.4c|5
Nearside Rear Position lamp not working (4.2.1 (a) (ii))5
Offside Headlamp not working on main beam (4.1.1 (a) (ii))5
Offside Front Seat belt locking mechanism does not secure or release |5.2.5a|5
Nearside Rear An item not tested |Manual|5
Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|5
Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a|5
Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a|5
Parking brake efficiency below requirements (1.4.2 (a) (i))5
Rear fog lamp missing |1.3.2a|5
Offside Rear Rear fog lamp missing |1.3.2a|5
Nearside Rear Wheel nut|s| missing |4.2.A.1e|5
Nearside Steering rack gaiter split |2.2.D.2d|5
Nearside Front Front wheel bearing has excessive play |2.5.A.3c|5
Rear brake application uneven5
Nearside Front Front position lamp|s| not working |1.1.A.3b|5
Offside Rear front brake binding |3.7.B.1|5
Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|4
Nearside Front Shock absorber has negligible damping effect |2.7.5|4
Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))4
Fuel tank leaking |7.2.3|4
Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a|4
Nearside Outer Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2|4
Nearside rear brake recording little or no effort |3.7.B.5a|4
Nearside Front Position lamp not working (4.2.1 (a) (ii))4
Horn not working (7.7 (a) (ii))4
Offside Rear Service brake excessively binding (1.2.1 (f))4
Nearside Rear Direction indicator incorrect colour |1.4.A.2f|4
Offside Rear Direction indicator incorrect colour |1.4.A.2f|4
Offside Front wheel bearing has excessive play |2.5.A.3c|4
Nearside Rear Brake hose bulging under pressure |3.6.B.3|4
Offside Front Windscreen wiper not operating automatically when switched on |8.2.1b|4
Parking brake: efficiency below requirements (3.7.B.7)4
Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|4
Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|4
Exhaust engine idle speed too high |7.3.A.2a|4
Nearside Front An item not tested |Manual|4
Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|4
Offside Front Headlamp not working on dipped beam |1.7.5a|4
Front passenger door cannot be opened from outside the vehicle |6.2.B.1b|4
Rear fog lamp not working (4.5.1 (a) (ii))4
Offside Front Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a|3
Rear Direction indicator incorrect colour |1.4.A.2f|3
Nearside Front Seat belt retracting mechanism defective |5.2.5b|3
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|3
Rear Stop lamp not working |1.2.1b|3
Driver`s seat fore and aft adjustment mechanism not functioning as intended. |6.2.A.3|3
Offside Headlamp not working on dipped beam (4.1.1 (a) (ii))3
Nearside Headlamp not working on main beam (4.1.1 (a) (ii))3
Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))3
Offside Rear wheel bearing has excessive play |2.6.2|3
Stop lamp remains on when the brakes are released3
Horn not loud enough to be heard by another road user |1.6.2b|3
Nearside Rear Direction indicators incorrect colour |1.4.A.2f|3
Offside Rear Direction indicators incorrect colour |1.4.A.2f|3
Nearside Rear wheel bearing has excessive play |2.6.2|3
Emissions not tested |7.0|3
Steering column movement between the shaft and steering wheel |2.1.2b|3
Offside Front Direction indicator not working |4.4.1 |a| |ii||3
Rear Rear fog lamp missing |1.3.2a|3
Stop lamp not working |1.2.1b|3
Offside Front Position lamp not working (4.2.1 (a) (ii))3
Nearside Front Windscreen wiper not operating automatically when switched on |8.2.1b|3
Nearside Front Front wheel bearing rough when rotated |2.5.A.2|3
Nearside Parking brake inoperative on one side (1.4.1 (a))3
Nearside Rear Service brake excessively binding (1.2.1 (f))3
Offside Headlamp not in good working order adversely affecting beam image |1.2.4a|3
Offside Front Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6|3
Front Front position lamp|s| incorrect colour |1.1.A.3e|3
Offside Front Front wheel bearing has excessive play |2.5.A.3c|3
Service brake efficiency below requirements (1.2.2 (a) (i))3
Driver`s door cannot be opened from inside the vehicle |6.2.B.1b|3
Offside rear brake juddering severely |3.7.A.5b|3
Nearside Rear Rear fog lamp not working |1.3.2b|3
Nearside Front Direction indicators not working |1.4.A.2c|3
Offside Outer Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2|3
Offside Front Headlamp not working on main beam |1.7.5a|3
Offside Front Front position lamp|s| not working |1.1.A.3b|3
Exhaust emits dense blue smoke at idle |7.3.A.2b|3
Nearside Front Headlamp aim beam image kick up to the offside |1.8|3
Offside Obligatory mirror missing |8.1.1|3
Nearside Rear brake caliper has restricted free movement |3.5.1k|3
Offside Front Direction indicator incorrect colour |1.4.A.2f|3
Nearside Front Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2|3
Offside Front Anti-roll bar rubber mounting deteriorated resulting in excessive movement |2.4.G.2|3
Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2|3
Direction indicators not working |1.4.A.2c|3
rear parking |secondary| brakes imbalanced3
Parking brake: efficiency below requirements |3.7.D.4|3
Brake hose has insufficient room to move3

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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