MOT History from tests of petrol PORSCHE 911s year 1973

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:80.21%

(The average a petrol PORSCHE 911 year 1973 passes without issue)

Based on:2,784 MOT Tests

Most common failures	No# failures
Headlamp aim out of alignment	179
Registration plate lamp issues	93
Windscreen wiper does not clear the windscreen effectively	47
Rear brake binding	45
Registration plate issues	43
Horn not working \|1.6.2a\|	38
Parking brake: efficiency below requirements \|3.7.B.7\|	30
Nearside Headlamp aim beam image kick up to the offside \|1.8\|	27
Offside Stop lamp not working \|1.2.1b\|	27
Nearside Stop lamp not working \|1.2.1b\|	26
Offside Headlamp aim beam image kick up to the offside \|1.8\|	25
Rear parking brake recording little or no effort	24
Brakes imbalanced across an axle	18
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	17
Offside Front Direction indicator not working \|1.4.A.2c\|	17
Nearside Front Direction indicator not working \|1.4.A.2c\|	15
Nearside Headlamp not working on dipped beam \|1.7.5a\|	13
Nearside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	12
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	12
Brake pipe excessively corroded	12
Offside Headlamp not working on dipped beam \|1.7.5a\|	11
Brake hose has insufficient room to move	11
Offside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	10
Offside Headlamp not working on main beam \|1.7.5a\|	10
Service brake: efficiency below requirements \|3.7.B.7\|	10
Nearside Headlamp not working on main beam \|1.7.5a\|	9
Nearside Rear Stop lamp not working \|1.2.1b\|	9
Front passenger door cannot be opened from inside the vehicle \|6.2.B.1b\|	9
Nearside Front Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	9
Offside Front Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	9
Offside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	8
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	7
Nearside Front Direction indicator incorrect colour \|1.4.A.2f\|	7
Offside Rear Anti-roll bar linkage has excessive play in a pin/bush \|2.4.G.2\|	7
Nearside Rear Direction indicator incorrect colour \|1.4.A.2f\|	7
Offside Rear Direction indicator incorrect colour \|1.4.A.2f\|	7
Direction indicators not working \|1.4.A.2c\|	6
Offside Front Direction indicator incorrect colour \|1.4.A.2f\|	6
Nearside Rear Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	6
Offside Rear Anti-roll bar has excessive play in a pin/bush \|2.4.G.2\|	6
Nearside Rear Anti-roll bar linkage has excessive play in a ball joint \|2.4.G.2\|	6
Nearside Front position lamp\|s\| incorrect colour \|1.1.A.3e\|	6
Offside Front position lamp\|s\| incorrect colour \|1.1.A.3e\|	6
Offside Front front brake binding \|3.7.B.1\|	6
Hazard warning tell tale not working correctly \|1.4.B.1e\|	6
Offside Rear Stop lamp not working \|1.2.1b\|	6
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	6
Main beam `tell-tale` not working \|1.7.4c\|	6
Nearside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	6
Windscreen washer not working	6
Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush \|2.4.G.2\|	6
Rear Mechanical brake component has restricted free movement	6
Hazard warning lamps inoperative \|1.4.B.1b\|	5
Nearside Front Headlamp aim beam image kick up to the offside \|1.8\|	5
Offside Rear Anti-roll bar linkage has excessive play in a ball joint \|2.4.G.2\|	5
Offside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	5
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	5
Brake performance not tested \|3.7.A.1\|	5
Fuel tank leaking \|7.2.3\|	5
Battery insecure \|1.9.1\|	5
Nearside Rear Fuel hose leaking \|7.2.3\|	5
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	5
Steering column top bearing excessively worn \|2.1.2c\|	5
Fuel hose leaking \|7.2.3\|	5
Offside Rear Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	5
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	5
Horn not working \|7.7 \|a\| \|ii\|\|	5
Headlamp aim beam image kick up to the offside \|1.8\|	4
Nearside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	4
Offside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	4
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	4
Nearside Front Front wheel bearing has excessive play \|2.5.A.3c\|	4
Brake hose excessively deteriorated	4
Offside Steering rack gaiter split \|2.2.D.2d\|	4
Offside Front Headlamp not working on dipped beam \|1.7.5a\|	4
Offside Front Headlamp not working on main beam \|1.7.5a\|	4
Nearside Steering rack gaiter split \|2.2.D.2d\|	4
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	4
Driver`s seat fore and aft adjustment mechanism not functioning as intended. \|6.2.A.3\|	4
Horn not working (7.7 (a) (ii))	4
Nearside Front Direction indicators not working \|1.4.A.2c\|	4
Stop lamp not working \|1.2.1b\|	4
Offside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	4
Hazard warning switch faulty \|1.4.B.1d\|	4
Front Windscreen wiper not operating automatically when switched on \|8.2.1b\|	4
Nearside Front Direction indicators incorrect colour \|1.4.A.2f\|	4
Offside front brake binding \|3.7.B.1\|	4
Offside Front position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	4
Offside Headlamp aim beam image kick up to the offside \|1.6.B1\|	3
Nearside Front Front position lamp\|s\| incorrect colour \|1.1.A.3e\|	3
Hazard warning lamps not flashing in phase, with ignition off \|1.4.B.1f\|	3
Steering rack insecure \|2.2.B.1a\|	3
Offside Front Headlamp aim beam image kick up to the offside \|1.8\|	3
Offside Obligatory mirror missing \|8.1.1\|	3
Nearside Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	3
Nearside Rear Direction indicator not working \|1.4.A.2c\|	3
Nearside Front Shock absorber has negligible damping effect \|2.7.5\|	3
Parking brake: efficiency below requirements \|3.7.C.1b\|	3
Driver`s seat cannot be secured in the upright position. \|6.2.A.2\|	3
Driver`s door cannot be opened from inside the vehicle \|6.2.B.1b\|	3
Offside Rear Rear position lamp\|s\| not working \|1.1.A.3b\|	3
Offside Rear position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	3
Nearside Front Headlamp not working on main beam \|1.7.5a\|	3
Nearside Front Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	3
Offside Front Brake hose bulging under pressure \|3.6.B.3\|	3
Nearside front brake binding \|3.7.B.1\|	3
Offside Rear Stop lamp adversely affected by the operation of another lamp \|1.2.1f\|	3
Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))	3
Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	3
Brake hydraulic reservoir fluid level below minimum level \|3.6.G.1b\|	3
Nearside Rear Anti-roll bar linkage rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	3
Nearside Outer Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	3
Offside Front Braking system leaking \|3.6.A.1\|	3
Brake hose damaged	3
Offside Direction indicator not working \|1.4.A.2c\|	3
All direction indicators not working (4.4.1 (a) (ii))	3
Nearside Front Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	3
Stop lamp\|s\| all not working \|4.3.1 \|a\| \|iii\|\|	3
Nearside Rear Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement \|2.4.G.2\|	3
Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	3
Mechanical brake component has restricted free movement	3
Nearside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	3
Offside Rear Anti-roll bar rubber bush deteriorated resulting in excessive movement \|2.4.G.2\|	3
Stop lamp remains on when the brakes are released	3
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	3
Nearside Front Direction indicator adversely affected by the operation of another lamp \|1.4.A.2h\|	3
Nearside Indicator tell tale inoperative \|1.4.A.2a\|	2
Position lamp switch faulty \|1.1.A.1\|	2
Offside Front Steering rack gaiter insecure \|2.2.D.2d\|	2
Nearside Rear Anti-roll bar linkage insecure \|2.4.G.1\|	2
Nearside Headlamp aim beam image kick up to the offside \|1.6.B1\|	2
Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	2
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	2
Hazard warning lamps not flashing in phase, with ignition on \|1.4.B.1f\|	2
Nearside Front All position lamps not working \|1.1.A.3b\|	2
Nearside Front Seat belt insecurely fixed to the seat \|5.2.1a\|	2
Nearside Front Headlamp not working on dipped beam \|1.7.5a\|	2
Nearside Front front brake binding \|3.7.B.1\|	2
Exhaust engine idle speed too high \|7.3.A.2a\|	2
Offside Front Position lamp not working (4.2.1 (a) (ii))	2
All direction indicators not working \|4.4.1 \|a\| \|ii\|\|	2
Nearside Rear Direction indicator not working (4.4.1 (a) (ii))	2
Rear Stop lamp not working \|1.2.1b\|	2
Front brake disc in such a condition that it is seriously weakened	2
Front brake application uneven	2
Offside Obligatory mirror seriously damaged, affecting the rear view \|8.1.2a\|	2
Nearside Front Brake hose bulging under pressure \|3.6.B.3\|	2
Horn control insecure \|1.6.1\|	2
Offside Front Position lamp not working \|4.2.1 \|a\|\|	2
Dipswitch operation does not deflect all main beam headlamps to make them dipped beams \|1.7.4b\|	2
Brake fluid warning lamp inoperative \|3.6.G.2\|	2
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	2
Nearside Front Headlamp insecure \|1.7.3\|	2
Offside Rear Direction indicators not working \|1.4.A.2c\|	2
Offside Rear Direction indicator not working \|1.4.A.2c\|	2
Nearside Front Anti-roll bar attachment bracket/mounting insecure \|2.4.G.1\|	2
Nearside rear brake recording little or no effort \|3.7.B.5a\|	2
Fuel cap/sealing device sealing washer missing \|7.2.4c\|	2
Offside Rear Direction indicator adversely affected by the operation of another lamp \|1.4.A.2h\|	2
Centre Obligatory mirror missing \|8.1.1\|	2
Nearside Rear Service brake excessively binding \|1.2.1 \|f\|\|	2
Offside Front Anti-roll bar attachment bracket/mounting insecure \|2.4.G.1\|	2
All position lamps not working \|1.1.A.3b\|	2
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` \|8.3.1e\|	2
Offside Rear Rear position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	2
Rear brake application uneven	2
Indicator switch faulty \|1.4.A.1\|	2
Offside Outer Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	2
Front passenger seat cannot be secured in the upright position. \|6.2.4\|	2
Offside Front Direction indicator incorrect colour \|4.4.3 \|a\|\|	2
Offside Track rod end ball joint has excessive play \|2.2.B.1f\|	2
Nearside Front front brake recording little or no effort \|3.7.B.5a\|	2
Nearside Front Headlamp not working on main beam (4.1.1 (a) (ii))	2
Brake performance not tested (1.2.1 (g))	2
Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	2
Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))	2
Offside Rear Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement \|2.4.G.2\|	2
Offside Front Statutory seat belt missing \|5.1.1\|	2
Offside Front Direction indicators incorrect colour \|1.4.A.2f\|	2
Nearside Front Track rod end ball joint has excessive play \|2.2.B.1f\|	2
Nearside Rear position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	2
Headlamp switch faulty \|1.7.1\|	2
Horn not working (1.6.2a)	2
All position lamps not working (1.1.A.3b)	2
Headlamp excessively damaged so that the light output is severely reduced \|1.7.5a\|	2
Nearside Rear rear brake grabbing severely \|3.7.A.5b\|	2
Nearside Rear Rear position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	2
Nearside Front position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	2
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))	2
Offside Rear Hazard warning lamps not flashing in phase, with ignition on \|1.4.B.1f\|	2
Offside Rear Hazard warning lamps not flashing in phase, with ignition off \|1.4.B.1f\|	2
Front passenger door cannot be opened from outside the vehicle \|6.2.B.1b\|	2
Offside Front Indicator tell tale inoperative \|1.4.A.2a\|	2
Nearside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	2
Offside Front Front position lamp\|s\| incorrect colour \|1.1.A.3e\|	2
Nearside Front Position lamp not working (4.2.1 (a) (ii))	2
Front Headlamp not working on main beam \|1.7.5a\|	2
Windscreen has a sticker or other obstruction encroaching by more than 10mm within zone `A` \|8.3.1b\|	2
Braking system leaking \|3.6.A.1\|	2
Offside Rear wheel bearing has excessive play \|2.6.2\|	2
Offside Front Steering rack gaiter split \|2.2.D.2d\|	2
Offside Rear Rear wheel bearing rough when rotated \|2.6.1\|	2
Offside Rear front brake binding \|3.7.B.1\|	2
Windscreen has damage	2
Nearside Front Front position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	2
Indicator tell tale inoperative \|1.4.A.2a\|	2
Bonnet cannot be secured in the closed position \|8.4.1\|	2
Stop lamp(s) all not working (4.3.1 (a) (iii))	2
Offside Front wheel bearing has excessive play \|2.5.A.3c\|	2
Offside Front Direction indicator not working (1.4.A.2c)	2
Offside Front Front position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	2
Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))	2
Nearside Rear Direction indicator incorrect colour (4.4.3 (a))	2
Offside Rear Direction indicator incorrect colour (4.4.3 (a))	2
Nearside Stop lamp not working (1.2.1b)	2
Offside Stop lamp not working (1.2.1b)	2
Fuel system component leaking \|7.2.3\|	2

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 1973

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