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MOT History from tests of petrol PORSCHE 911s year 1984

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:76.52%
(The average a petrol PORSCHE 911 year 1984 passes without issue)
Based on:5,523 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment383
Offside Rear fog lamp not working |1.3.2b|180
Registration plate lamp issues145
Windscreen wiper does not clear the windscreen effectively110
Rear fog lamp not working |1.3.2b|109
Rear brake binding104
Brake hose excessively deteriorated103
Registration plate issues68
Service brake: efficiency below requirements |3.7.B.7|62
Parking brake: efficiency below requirements |3.7.B.7|42
Offside front brake binding |3.7.B.1|40
Exhaust emissions carbon monoxide content excessive |7.3.B.1a|37
Offside Rear Rear fog lamp not working |1.3.2b|36
Rear parking brake recording little or no effort34
Brakes imbalanced across an axle34
Horn not working |1.6.2a|34
Windscreen washer not working 34
Nearside Front position lamp|s| not working |1.1.A.3b|29
Nearside Headlamp not working on dipped beam |1.7.5a|26
Nearside front brake binding |3.7.B.1|26
Mechanical brake component has restricted free movement24
Exhaust has a major leak of exhaust gases |7.1.2|22
Offside Headlamp not working on dipped beam |1.7.5a|22
Nearside Side repeater not working |1.4.A.2c|22
Rear Rear fog lamp not working |1.3.2b|22
Offside Front position lamp|s| not working |1.1.A.3b|21
Battery insecure |1.9.1|21
Offside Side repeater not working |1.4.A.2c|20
Nearside Stop lamp not working |1.2.1b|20
Nearside Front front brake binding |3.7.B.1|19
Offside Front front brake binding |3.7.B.1|19
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|19
Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|18
Rear fog lamp tell tale not working |1.3.1b|17
Offside Front Direction indicator not working |1.4.A.2c|17
Offside Stop lamp not working |1.2.1b|16
Nearside Rear fog lamp not working |1.3.2b|16
Nearside Front Front position lamp|s| not working |1.1.A.3b|15
Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|15
Rear Mechanical brake component has restricted free movement15
Rear fog lamp not working (4.5.1 (a) (ii))15
Offside Rear fog lamp not working (4.5.1 (a) (ii))15
Steering column top bearing excessively worn |2.1.2c|15
Offside Rear Direction indicator not working |1.4.A.2c|14
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|13
Rear fog lamp switch missing |1.3.1a|13
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|13
Exhaust emissions hydrocarbon content excessive |7.3.B.1b|13
Nearside Front Direction indicator not working |1.4.A.2c|12
Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b|12
Offside Rear fog lamp missing |1.3.2a|12
Front brake application uneven12
Offside Headlamp not working on main beam |1.7.5a|11
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|11
Nearside Front wheel bearing has excessive play |2.5.A.3c|11
Nearside Rear Stop lamp not working |1.2.1b|11
Parking brake lever has no reserve travel |3.1.6b|10
Offside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|10
Nearside Exhaust has a major leak of exhaust gases |7.1.2|10
Nearside Headlamp not working on main beam |1.7.5a|10
Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|10
Offside Rear Rear fog lamp not working (4.5.1 (a) (ii))10
Nearside Rear position lamp|s| not working |1.1.A.3b|10
Offside Rear Stop lamp not working |1.2.1b|10
Nearside Front Anti-roll bar rubber bush deteriorated resulting in excessive movement |2.4.G.2|9
Rear fog lamp missing |1.3.2a|9
Rear fog lamp not working |4.5.1 |a| |ii||9
Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|9
Nearside Rear Exhaust has a major leak of exhaust gases |7.1.2|9
Offside Rear position lamp|s| not working |1.1.A.3b|8
Offside Headlamp aim beam image kick up to the offside |1.8|8
Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|8
Offside Front wheel bearing has excessive play |2.5.A.3c|8
Offside Front Front position lamp|s| not working |1.1.A.3b|8
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|8
Nearside Steering rack gaiter split |2.2.D.2d|7
Hazard warning tell tale not working correctly |1.4.B.1e|7
Nearside Rear Direction indicator not working |1.4.A.2c|7
Nearside Headlamp aim beam image kick up to the offside |1.8|7
Offside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2|7
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|7
Nearside Front Side repeater not working |1.4.A.2c|7
Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|7
Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|7
Nearside Front Service brake excessively binding (1.2.1 (f))7
Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))7
Service brake efficiency below requirements (1.2.2 (a) (i))7
Offside Headlamp aim beam image obviously incorrect |1.8.A.1b|7
Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2|7
Rear fog lamp switch faulty |1.3.1a|6
Offside Front wheel bearing rough when rotated |2.5.A.2|6
Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|6
Rear Exhaust has a major leak of exhaust gases |7.1.2|6
Offside Front Side repeater not working |1.4.A.2c|6
Offside Rear Service brake excessively binding |1.2.1 |f||6
Windscreen has damage6
Offside Headlamp not in good working order adversely affecting beam image |1.2.4a|6
Nearside Front Direction indicators not working |1.4.A.2c|6
Nearside Front Headlamp not working on dipped beam |1.7.5a|6
Nearside Front Headlamp not working on main beam |1.7.5a|6
Exhaust emits dense blue smoke at idle |7.3.A.2b|6
Front brake disc in such a condition that it is seriously weakened6
Dipswitch operation does not extinguish all main beam headlamps leaving at least one pair of dipped beam headlamps |1.7.4b|5
Nearside Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|5
Direction indicators not working |1.4.A.2c|5
Nearside Rear Direction indicator not working (4.4.1 (a) (ii))5
Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))5
Offside Front Headlamp aim beam image kick up to the offside |1.8|5
Front position lamp|s| not working |1.1.A.3b|5
Headlamp switch faulty |1.7.1|5
Driver`s door cannot be opened from inside the vehicle |6.2.B.1b|5
Stop lamp remains on when the brakes are released5
Nearside Track rod end ball joint has excessive play |2.2.B.1f|5
Offside Front Headlamp not working on main beam |1.7.5a|5
Emissions not tested |7.0|5
Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|5
Offside Front Service brake excessively binding (1.2.1 (f))5
Nearside Front Track rod end ball joint has excessive play |2.2.B.1f|5
Nearside Rear Rear position lamp|s| not working |1.1.A.3b|5
Offside Front Upper Suspension component mounting prescribed area is excessively corroded |2.4.A.3|5
Offside Rear Brake hose bulging under pressure |3.6.B.3|5
Offside Front Front wheel bearing rough when rotated |2.5.A.2|5
Rear brake application uneven5
Horn not working |7.7 |a| |ii||4
Nearside Rear Front position lamp|s| not working |1.1.A.3b|4
Nearside Front passenger door cannot be opened from outside the vehicle |6.2.B.1b|4
Offside Front Headlamp aim beam image obviously incorrect |1.8.A.1b|4
Offside Front Position lamp not working (4.2.1 (a) (ii))4
Offside Rear Position lamp not working (4.2.1 (a) (ii))4
Rear fog lamp missing (4.5.1 (a) (ii))4
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))4
Nearside Headlamp not working on main beam (4.1.1 (a) (ii))4
Nearside Front Headlamp aim beam image kick up to the offside |1.8|4
Offside Front Headlamp not working on dipped beam |1.7.5a|4
Offside Rear Service brake indicates brake bind |3.7.D.2a|4
An item not tested |Manual|4
Offside Rear Trailing arm attachment bracket/mounting corroded and its strength is seriously reduced |2.4.G.1|4
Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii||4
Rear fog lamp tell tale missing |1.3.1b|4
Nearside Rear Service brake excessively binding (1.2.1 (f))4
Offside Windscreen wiper not operating automatically when switched on |8.2.1b|4
Brake performance not tested |3.7.A.1|4
Offside Rear Rear fog lamp missing |1.3.2a|4
Horn not working (7.7 (a) (ii))4
Front Windscreen wiper not operating automatically when switched on |8.2.1b|4
Nearside Rear Position lamp not working (4.2.1 (a) (ii))4
Exhaust emissions hydrocarbon content excessive (8.2.1.2 (b))4
Offside Front Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6|4
Stop lamp not working |1.2.1b|4
Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f|4
Offside Rear Wheel nut|s| missing |4.2.A.1e|4
Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|4
Nearside Front Front wheel bearing has excessive play |2.5.A.3c|4
Nearside Front Position lamp not working (4.2.1 (a) (ii))4
Parking brake: efficiency below requirements |3.7.C.1b|4
Driver`s door cannot be opened from outside the vehicle |6.2.B.1b|4
Nearside Rear An item not tested |Manual|4
Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))4
Nearside Rear Direction indicators not working |1.4.A.2c|4
Nearside Front Brake hose bulging under pressure |3.6.B.3|4
Brake pedal spongy |3.3.B.1b|4
Offside Side repeater incorrect colour |1.4.A.2f|4
Nearside Front wheel bearing rough when rotated |2.5.A.2|4

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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