MOT History from tests of petrol PORSCHE 911s year 1986

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:76.59%

(The average a petrol PORSCHE 911 year 1986 passes without issue)

Based on:8,352 MOT Tests

Most common failures	No# failures
Headlamp aim out of alignment	584
Offside Rear fog lamp not working \|1.3.2b\|	236
Registration plate lamp issues	230
Brake hose excessively deteriorated	200
Windscreen wiper does not clear the windscreen effectively	178
Rear fog lamp not working \|1.3.2b\|	123
Registration plate issues	120
Exhaust emissions carbon monoxide content excessive \|7.3.B.1a\|	120
Rear brake binding	117
Brakes imbalanced across an axle	70
Windscreen washer not working	66
Offside Rear Rear fog lamp not working \|1.3.2b\|	60
Parking brake: efficiency below requirements \|3.7.B.7\|	59
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	58
Service brake: efficiency below requirements \|3.7.B.7\|	56
Rear parking brake recording little or no effort	49
Horn not working \|1.6.2a\|	48
Offside Side repeater not working \|1.4.A.2c\|	48
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	46
Rear fog lamp tell tale not working \|1.3.1b\|	44
Nearside front brake binding \|3.7.B.1\|	42
Nearside Side repeater not working \|1.4.A.2c\|	41
Nearside Stop lamp not working \|1.2.1b\|	40
Rear Rear fog lamp not working \|1.3.2b\|	37
Offside Stop lamp not working \|1.2.1b\|	34
Offside front brake binding \|3.7.B.1\|	33
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	29
Exhaust has a major leak of exhaust gases \|7.1.2\|	28
Nearside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	27
Nearside Headlamp not working on dipped beam \|1.7.5a\|	26
Offside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	24
Steering column top bearing excessively worn \|2.1.2c\|	24
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	23
Exhaust emissions hydrocarbon content excessive \|7.3.B.1b\|	23
Rear fog lamp not working (4.5.1 (a) (ii))	22
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	22
Nearside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	22
Offside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	21
Nearside Front front brake binding \|3.7.B.1\|	21
Nearside Headlamp not working on main beam \|1.7.5a\|	20
Offside Rear Stop lamp not working \|1.2.1b\|	18
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	18
Offside Headlamp not working on dipped beam \|1.7.5a\|	18
Nearside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	17
Offside Front front brake binding \|3.7.B.1\|	17
Nearside Front Direction indicator not working \|1.4.A.2c\|	17
Offside Headlamp aim beam image kick up to the offside \|1.8\|	17
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	16
Offside Headlamp not working on main beam \|1.7.5a\|	16
Offside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	16
Offside Rear fog lamp missing \|1.3.2a\|	15
Mechanical brake component has restricted free movement	15
Offside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	15
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	15
Rear Mechanical brake component has restricted free movement	14
Nearside Rear Stop lamp not working \|1.2.1b\|	14
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	14
Rear fog lamp not working \|4.5.1 \|a\| \|ii\|\|	13
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	13
Nearside Rear Service brake excessively binding (1.2.1 (f))	13
Nearside Front Shock absorber has a serious fluid leak \|2.7.3\|	13
Battery insecure \|1.9.1\|	13
Offside Steering rack gaiter split \|2.2.D.2d\|	13
Offside Front Direction indicator not working \|1.4.A.2c\|	13
Nearside Front Side repeater not working \|1.4.A.2c\|	12
Nearside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	12
Nearside Front wheel bearing has excessive play \|2.5.A.3c\|	12
Offside Rear Rear fog lamp not working (4.5.1 (a) (ii))	12
Offside Front Side repeater not working \|1.4.A.2c\|	12
Nearside Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	12
Headlamp switch faulty \|1.7.1\|	12
Offside Front Headlamp not working on dipped beam \|1.7.5a\|	12
Nearside Headlamp aim beam image kick up to the offside \|1.8\|	12
Rear fog lamp missing \|1.3.2a\|	12
Offside Front wheel bearing rough when rotated \|2.5.A.2\|	11
Offside Rear Direction indicator not working \|1.4.A.2c\|	11
Nearside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	11
Offside Rear Service brake excessively binding (1.2.1 (f))	11
Offside Front Headlamp not working on main beam \|1.7.5a\|	11
Nearside Rear Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	10
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	10
Offside Front wheel bearing has excessive play \|2.5.A.3c\|	10
Nearside Rear Direction indicator not working \|1.4.A.2c\|	10
Nearside Front Headlamp not working on dipped beam \|1.7.5a\|	10
Offside Rear Position lamp not working (4.2.1 (a) (ii))	10
Direction indicators not working \|1.4.A.2c\|	9
Front brake application uneven	9
Offside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	9
Nearside Steering rack gaiter split \|2.2.D.2d\|	9
Offside Rear fog lamp not working (4.5.1 (a) (ii))	9
Nearside Front Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	8
Offside Front Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	8
Fuel tank leaking \|7.2.3\|	8
Nearside Rear position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	8
Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))	8
Nearside Rear Rear fog lamp not working \|1.3.2b\|	8
Parking brake lever has no reserve travel \|3.1.6b\|	8
Parking brake efficiency below requirements (1.4.2 (a) (i))	8
Nearside Rear fog lamp not working \|1.3.2b\|	8
Nearside Front Anti-roll bar attachment bracket/mounting insecure \|2.4.G.1\|	8
Front passenger door cannot be opened from inside the vehicle \|6.2.B.1b\|	8
Offside Rear Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	7
Nearside Front Anti-roll bar attachment bracket/mounting fractured \|2.4.G.1\|	7
Offside Front Service brake excessively binding (1.2.1 (f))	7
Nearside Front wheel bearing rough when rotated \|2.5.A.2\|	7
Exhaust engine idle speed too high \|7.3.A.2a\|	7
Nearside Front Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	7
Nearside Rear Anti-roll bar attachment bracket/mounting fractured \|2.4.G.1\|	7
Offside Front Front wheel bearing has excessive play \|2.5.A.3c\|	7
Offside Front Front wheel bearing rough when rotated \|2.5.A.2\|	7
Front Windscreen wiper not operating automatically when switched on \|8.2.1b\|	7
Rear fog lamp switch missing \|1.3.1a\|	7
Nearside Rear Direction indicators not working \|1.4.A.2c\|	7
Offside Rear Brake hose bulging under pressure \|3.6.B.3\|	7
Nearside Front Shock absorbers has a serious fluid leak	7
Horn not working (7.7 (a) (ii))	7
Service brake efficiency below requirements (1.2.2 (a) (i))	7
Exhaust emissions carbon monoxide content excessive \|8.2.1.2 \|b\|\|	7
Offside Front Position lamp not working (4.2.1 (a) (ii))	7
Nearside Front Front wheel bearing rough when rotated \|2.5.A.2\|	6
Stop lamp(s) all not working (4.3.1 (a) (iii))	6
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))	6
Nearside Exhaust has a major leak of exhaust gases \|7.1.2\|	6
Nearside Front Position lamp not working \|4.2.1 \|a\|\|	6
Nearside Rear Position lamp not working \|4.2.1 \|a\|\|	6
Offside Front brake caliper has restricted free movement \|3.5.1k\|	6
Nearside Rear wheel bearing has excessive play \|2.6.2\|	6
Headlamp aim not tested \|1.8.A.1c\|	6
Parking brake efficiency below requirements \|1.4.2 \|a\| \|i\|\|	6
Nearside Front Headlamp not working on main beam \|1.7.5a\|	6
Offside Front Steering rack gaiter split \|2.2.D.2d\|	6
Front passenger door cannot be opened from outside the vehicle \|6.2.B.1b\|	6
Offside Rear Brake hose leaking \|3.6.A.1\|	6
Stop lamp not working \|1.2.1b\|	6
Rear Stop lamp not working \|1.2.1b\|	6

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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MOT History from tests of petrol PORSCHE 911s year 1986

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