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MOT History from tests of petrol PORSCHE 911s year 1970

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:75.45%
(The average a petrol PORSCHE 911 year 1970 passes without issue)
Based on:1,393 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment120
Registration plate lamp issues61
Horn not working |1.6.2a|32
Rear parking brake recording little or no effort28
Rear brake binding27
Parking brake: efficiency below requirements |3.7.B.7|26
Windscreen wiper does not clear the windscreen effectively22
Brakes imbalanced across an axle19
Registration plate issues18
Nearside Front Direction indicator not working |1.4.A.2c|16
Offside Front Direction indicator not working |1.4.A.2c|14
Offside Headlamp not working on dipped beam |1.7.5a|14
Service brake: efficiency below requirements |3.7.B.7|13
Nearside Headlamp not working on dipped beam |1.7.5a|13
Offside Front position lamp|s| not working |1.1.A.3b|12
Nearside Front position lamp|s| not working |1.1.A.3b|11
Nearside Stop lamp not working |1.2.1b|11
Nearside Headlamp not working on main beam |1.7.5a|10
Offside Headlamp not working on main beam |1.7.5a|10
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|9
Offside Stop lamp not working |1.2.1b|9
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|8
Nearside Headlamp aim beam image kick up to the offside |1.8|8
Offside Headlamp aim beam image kick up to the offside |1.8|7
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|7
Hazard warning tell tale not working correctly |1.4.B.1e|6
Nearside Rear Direction indicator incorrect colour |1.4.A.2f|6
Offside Rear Direction indicator incorrect colour |1.4.A.2f|6
Offside Front Shock absorber has a serious fluid leak |2.7.3|6
Fuel cap/sealing device sealing washer deteriorated |7.2.4c|5
Nearside Front Headlamp aim beam image kick up to the offside |1.8|5
Offside Front Headlamp aim beam image kick up to the offside |1.8|5
Nearside Rear Direction indicator not working |1.4.A.2c|5
Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|5
Nearside Front Front position lamp|s| not working |1.1.A.3b|5
Offside Headlamp aim beam image obviously incorrect |1.8.A.1b|5
Hazard warning lamps inoperative |1.4.B.1b|5
Brake pipe excessively corroded5
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))4
Offside Rear position lamp|s| not working |1.1.A.3b|4
Headlamp switch faulty |1.7.1|4
Stop lamp remains on when the brakes are released4
Nearside Seat belt anchorage prescribed area is excessively corroded |5.2.6|4
Nearside Front position lamp|s| incorrect colour |1.1.A.3e|4
Offside Front position lamp|s| incorrect colour |1.1.A.3e|4
Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a|4
Nearside Front wheel bearing rough when rotated |2.5.A.2|4
Parking brake: efficiency below requirements |3.7.C.1b|4
Rear Mechanical brake component has restricted free movement4
Driver`s seat cannot be secured in the upright position. |6.2.A.2|4
Front passenger door cannot be opened from outside the vehicle |6.2.B.1b|4
Offside Front Headlamp not working on dipped beam |1.7.5a|4
Offside Front front brake binding |3.7.B.1|4
Battery insecure |1.9.1|4
Offside Rear Stop lamp not working |1.2.1b|4
Hazard warning switch faulty |1.4.B.1d|4
Front Windscreen wiper not operating automatically when switched on |8.2.1b|4
Offside front brake binding |3.7.B.1|4
Windscreen has damage4
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|4
Brake hose excessively deteriorated4
Offside Front Direction indicator incorrect colour |1.4.A.2f|3
Offside Rear Direction indicator not working |1.4.A.2c|3
Nearside rear brake recording little or no effort |3.7.B.5a|3
Nearside Stop lamp adversely affected by the operation of another lamp |1.2.1f|3
Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))3
Nearside Rear position lamp|s| not working |1.1.A.3b|3
Offside Indicator tell tale inoperative |1.4.A.2a|3
Nearside Front position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|3
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|3
Offside Front Steering rack gaiter split |2.2.D.2d|3
Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a|3
Nearside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|3
Offside Front Front position lamp|s| not working |1.1.A.3b|3
Nearside Front Front wheel bearing rough when rotated |2.5.A.2|3
Offside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2|3
Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|3
Nearside Front Direction indicators not working |1.4.A.2c|3
Offside Front Direction indicators not working |1.4.A.2c|3
Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a|3
Front passenger seat cannot be secured in the upright position. |6.2.4|3
Nearside Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f|3
Nearside Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f|3
Offside Front Front wheel bearing has excessive play |2.5.A.3c|3
Driver`s door cannot be opened from outside the vehicle |6.2.B.1b|3
Nearside Front Headlamp not working on main beam |1.7.5a|3
Offside Headlamp not in good working order adversely affecting beam image |1.2.4a|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
Offside Front Headlamp not in good working order adversely affecting beam image |1.2.4a|3
Stop lamp not working |1.2.1b|3
Offside Rear wheel bearing rough when rotated |2.6.1|3
Rear Exhaust has a major leak of exhaust gases |7.1.2|3
Nearside front brake binding |3.7.B.1|3
Nearside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h|2
Nearside Track rod end ball joint has excessive play |2.2.B.1f|2
Nearside Front Front position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|2
Fuel cap/sealing device sealing washer torn |7.2.4c|2
Rear Fuel hose leaking |7.2.3|2
Nearside Front Direction indicator incorrect colour |1.4.A.2f|2
Nearside Front Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|2
Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Direction indicators incorrect colour |1.4.A.2f|2
Offside Front Driver`s seat cannot be secured in the upright position. |6.2.A.2|2
Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f|2
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e|2
Main beam `tell-tale` not working |1.7.4c|2
Offside Windscreen wiper blade deteriorated |8.2.2|2
Nearside Front wheel bearing has excessive play |2.5.A.3c|2
Offside Obligatory mirror missing |8.1.1|2
Driver`s door cannot be opened from inside the vehicle |6.2.B.1b|2
Offside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|2
Offside Front Headlamp not working on main beam |1.7.5a|2
Rear Direction indicators incorrect colour |1.4.A.2f|2
Windscreen washer not working 2
Offside Front Direction indicator excessively damaged so that it is not visible from a reasonable distance |1.4.A.2e|2
Nearside Front Front wheel bearing has excessive play |2.5.A.3c|2
Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a|2
Stop lamp|s| all not working |4.3.1 |a| |iii||2
Nearside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f|2
Seat belt locking mechanism does not secure or release |5.2.5a|2
Fuel system component leaking |7.2.3|2
Offside Front Headlamp not working on main beam (4.1.1 (a) (ii))2
Nearside Front Track rod end ball joint has excessive play |2.2.B.1f|2
Nearside Front Headlamp not working on dipped beam |1.7.5a|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 Suspension arm has excessive play in a ball joint |2.4.G.2|2
Offside Steering rack insecure |2.2.B.1a|2
Offside Front position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|2
Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a|2
Horn not working (7.7 (a) (ii))2
Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Offside Rear Rear wheel bearing rough when rotated |2.6.1|2
Rear brake application uneven2
Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
Direction indicators not working |1.4.A.2c|2
Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b|2
Nearside Rear Stop lamp not working |1.2.1b|2
Horn not loud enough to be heard by another road user |1.6.2b|2
Nearside Front Shock absorber has a serious fluid leak |2.7.3|2
Nearside Front Lower Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|2
Offside Front Lower Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
rear parking |secondary| brakes imbalanced2
Brake performance not tested |3.7.A.1|2
Service brake: efficiency below requirements |3.7.C.1a|2
Nearside Front front brake binding |3.7.B.1|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
Mechanical brake component has restricted free movement2
Exhaust has a major leak of exhaust gases |7.1.2|2
Brake pedal anti-slip provision missing |3.3.A.1b|2
Nearside Front Anti-roll bar has excessive play in a pin/bush |2.4.G.2|2
Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|2
Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b|2
Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2|2
Headlamp aim beam image obviously incorrect both right hand dip |1.8.A.1b|2
Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|2
Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Nearside Rear Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2|2
Nearside Indicator tell tale inoperative |1.4.A.2a|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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