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MOT History from tests of petrol PORSCHE 928s year 1979

Review the list of common PORSCHE 928 failures below or to perform a specific mot history check on your PORSCHE then use our popular KnowYourCar service

mot history
Pass percent:73.21%
(The average a petrol PORSCHE 928 year 1979 passes without issue)
Based on:601 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment44
Registration plate lamp issues26
Brake hose excessively deteriorated24
Windscreen wiper does not clear the windscreen effectively20
Horn not working |1.6.2a|16
Rear brake binding16
Parking brake: efficiency below requirements |3.7.B.7|15
Exhaust emissions carbon monoxide content excessive |7.3.B.1a|9
Offside Rear Seat belt retracting mechanism defective |5.2.5b|9
Service brake: efficiency below requirements |3.7.B.7|8
Offside Front Brake hose bulging under pressure |3.6.B.3|7
Windscreen washer not working 7
Rear Exhaust has a major leak of exhaust gases |7.1.2|6
Exhaust emissions hydrocarbon content excessive |7.3.B.1b|6
Brakes imbalanced across an axle5
Offside Stop lamp not working |1.2.1b|5
Offside front brake binding |3.7.B.1|4
Nearside Steering rack gaiter split |2.2.D.2d|4
Nearside Headlamp not working on main beam |1.7.5a|4
Offside Steering rack gaiter split |2.2.D.2d|4
Registration plate issues4
Offside Rear Direction indicator not working |1.4.A.2c|4
Nearside Front Brake hose bulging under pressure |3.6.B.3|3
Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a|3
Service brake efficiency below requirements (1.2.2 (a) (i))3
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|3
Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b|3
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|3
Nearside front brake binding |3.7.B.1|3
Nearside Headlamp not working on dipped beam |1.7.5a|3
Offside Headlamp not working on main beam |1.7.5a|3
Offside Front Seat belt retracting mechanism defective |5.2.5b|2
Offside Headlamp not working on dipped beam |1.7.5a|2
Nearside Rear Stop lamp not working |1.2.1b|2
Offside Rear Stop lamp not working |1.2.1b|2
Nearside Front Brake hose leaking |3.6.A.1|2
Offside Front Brake hose leaking |3.6.A.1|2
Nearside Side repeater not working |1.4.A.2c|2
Offside Headlamp aim beam image obviously incorrect |1.8.A.1b|2
Offside Headlamp not in good working order adversely affecting beam image |1.2.4a|2
Nearside Stop lamp not working |1.2.1b|2
Nearside Front Service brake excessively binding (1.2.1 (f))2
Offside Front Service brake excessively binding (1.2.1 (f))2
Rear brake disc in such a condition that it is seriously weakened2
Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))2
Power steering component|s| leaking |2.3.3b|2
Fuel system component insecure |7.2.1|2
Nearside Track rod end ball joint has excessive play |2.2.B.1f|2
Parking brake lever has no reserve travel |3.1.6b|2
Rear Mechanical brake component has restricted free movement2
Offside Front Steering rack gaiter split |2.2.D.2d|2
Brake performance not tested |3.7.A.1|2
Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))2
Nearside Front Headlamp not in good working order adversely affecting beam image |1.2.4a|2
Nearside Outer Rear Drive shaft which forms part of the suspension coupling gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.4.G.4e|2
Offside Front Front wheel bearing has excessive play |2.5.A.3c|2
Nearside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|2
Nearside Rear Direction indicator not working |1.4.A.2c|2
Brake hose has insufficient room to move2
Centre Exhaust has a major leak of exhaust gases |7.1.2|2
Headlamp does not operate immediately when selected on main beam |1.7.4a|1
Headlamp aim beam image obviously incorrect |1.8.A.1b|1
Nearside Rear brake caliper leaking |3.6.A.1|1
Nearside Front Rear wheel bearing rough when rotated |2.6.1|1
Front brake disc in such a condition that it is seriously weakened1
Offside Front wheel bearing rough when rotated |2.5.A.2|1
Nearside Front Headlamp not working on main beam |1.7.5a|1
Nearside Rear Seat belt not functioning as intended |7.1.2 |c||1
Offside Rear Seat belt not functioning as intended |7.1.2 |c||1
All direction indicators not working |4.4.1 |a| |ii||1
Rear fog lamp not working |4.5.1 |a| |ii||1
Hazard warning switch inoperative |4.4.2 |a| |ii||1
Horn not working |7.7 |a| |ii||1
Offside Steering rack gaiter missing or no longer prevents the ingress of dirt |2.1.3 |g| |ii||1
Exhaust has a major leak of exhaust gases |6.1.2 |a||1
Offside Front Service brake effort inadequate at a wheel |1.2.1 |a| |i||1
Nearside Rear Service brake has no recorded effort at a wheel |1.2.1 |a| |ii||1
Offside Rear Service brake has no recorded effort at a wheel |1.2.1 |a| |ii||1
Service brake efficiency less than 50% of the required value |1.2.2 |a| |ii||1
Offside Front Headlamp light intensity severely reduced |4.1.4 |a||1
Brake pipe excessively corroded1
Rear Fuel system component insecure |7.2.1|1
Front passenger door cannot be opened from inside the vehicle |6.2.3 |a||1
Front passenger door cannot be opened from outside the vehicle |6.2.3 |a||1
Offside Rear Inner Drive shaft which forms part of the suspension coupling gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.4.G.4e|1
Offside Rear Outer Drive shaft which forms part of the suspension coupling gaiter deteriorated to the extent that it no longer prevents the ingress of dirt etc |2.4.G.4e|1
Windscreen has damage1
Power steering pipe|s| or hose|s| leaking |2.3.3b|1
Nearside Outer Steering rack gaiter split |2.2.D.2d|1
Offside Rear Fuel system component leaking |7.2.3|1
Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|1
Offside Rear Exhaust system not adequately supported |7.1.1|1
Exhaust system not adequately supported centre |7.1.1|1
Nearside Front Front wheel bearing rough when rotated |2.5.A.2|1
Driver`s seat fore and aft adjustment mechanism not functioning as intended. |6.2.A.3|1
Steering system excessively rough judders when turning left. |2.2.D.1|1
Oil leaking excessively from engine (8.4.1 (a) (i))1
Steering wheel has movement relative to the column indicating looseness |2.2.1 |a| |i||1
Offside Front Wheel bearing has excessive play |5.1.3 |a| |i||1
Direction indicators adversely affected by the operation of another lamp |1.4.A.2h|1
Stop lamp adversely affected by the operation of another lamp |1.2.1f|1
Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|1
Offside Front Shock absorber has a serious fluid leak |2.7.3|1
Nearside Rear Service brake excessively binding (1.2.1 (f))1
Offside Front position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|1
Offside Headlamp not in good working order |not working| |1.2.4a|1
Nearside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2|1
Offside Steering rack gaiter missing or no longer prevents the ingress of dirt (2.1.3 (g) (ii))1
Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Lower Steering column universal joint has excessive play |2.1.5|1
Offside Inner Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Fuel tank insecure |7.2.1|1
Nearside Headlamp aim not tested |1.8.A.1c|1
Nearside Power steering ram|s| leaking from a failed seal |2.3.3b|1
Offside Power steering ram|s| leaking from a failed seal |2.3.3b|1
Windscreen wiper blade insecure1
Exhaust has part of the system excessively deteriorated |7.1.1a|1
Nearside All position lamps not working |1.1.A.3b|1
Nearside Front Brake pipe twisted |found during steering lock to lock check| |2.2.D.2b|1
Steering column top bearing excessively worn |2.1.2c|1
Nearside Front Passenger`s seat insecure |6.2.A.1|1
Nearside Power steering pipe|s| or hose|s| leaking from a joint |2.3.3b|1
Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2|1
Nearside Front Seat belt retracting mechanism defective |5.2.5b|1
Front Headlamp cleaning device inoperative |1.7.2|1
Indicator tell tale inoperative |1.4.A.2a|1
Offside Front suspension ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2|1
Steering column movement between the shaft and steering wheel |2.1.2b|1
Nearside Front Headlamp not working on dipped beam |1.7.5a|1
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e|1
Direction indicators not working |1.4.A.2c|1
Hazard warning lamps inoperative |1.4.B.1b|1
Offside Exhaust has a major leak of exhaust gases |7.1.2|1
Brake hose damaged1
Nearside Rear An item not tested |Manual|1
Brake warning device not working correctly |3.3.D.3a|1
Offside Steering arm has relative movement at its fixings |2.2.B.1h|1
Front Power steering pipe/hose leaking (2.1.5 (a))1
Parking brake efficiency below requirements (1.4.2 (a) (i))1
Front Service brake excessively binding (1.2.1 (f))1
Rear Parking brake inoperative on one side (1.4.1 (a))1
Exhaust system not adequately supported |7.1.1|1
Offside Front coil spring broken |2.4.C.1a|1
Headlamp not working on dipped beam |1.7.5a|1
Headlamp not working on main beam |1.7.5a|1
Speedometer cannot be illuminated. |6.7.3|1
Nearside Rear Rear position lamp|s| not working |1.1.A.3b|1
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Front Exhaust has a major leak of exhaust gases |7.1.2|1
Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4|1
Nearside Front Braking system leaking |3.6.A.1|1
Offside Front Braking system leaking |3.6.A.1|1
Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))1
Indicator switch inoperative (4.4.2 (a) (ii))1
Nearside Direction indicator adversely affected by the operation of another lamp affected by main beam (4.4.3 (b))1
Offside Front Seat belt not functioning as intended does not retract (7.1.2 (c))1
Rear Seat belt not functioning as intended both can not be pulled out (7.1.2 (c))1
Offside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a|1
Indicator switch faulty |1.4.A.1|1
Nearside Steering system has a road wheel fouling a part of the vehicle |2.2.D.2a|1
Nearside Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b|1
Offside Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b|1
Nearside Front Brake hose twisted |found during steering lock to lock check| |2.2.D.2b|1
Front Power steering component|s| leaking |2.3.3b|1
Exhaust has a major leak of exhaust gases |7.1.2|1
Nearside Front Anti-roll bar attachment bracket/mounting insecure |2.4.G.1|1
Nearside Rear Seat belt retracting mechanism defective |5.2.5b|1
Nearside Rear Drive shaft which forms part of the suspension damaged |2.4.G.4a|1
Horn not working (7.7 (a) (ii))1
Power steering inoperative and steering adversely affected (2.1.5 (c) (ii))1
Offside Rear Service brake excessively binding (1.2.1 (f))1
Steering system excessively rough (2.1.1 (a))1
Driver`s seat insecure |6.2.A.1|1
Front Passenger`s seat insecure |6.2.A.1|1
Brake fluid warning lamp illuminated |3.6.G.2|1
Rear parking brake recording little or no effort1
Offside Front coil spring fractured |2.4.C.1a|1
Offside Front Headlamp not working on main beam |1.7.5a|1
Nearside Rear position lamp|s| not working |1.1.A.3b|1
Nearside Rear Anti-roll bar linkage severely distorted |2.4.G.1|1
Nearside Stop lamp(s) not working (4.3.1 (a) (ii))1
Nearside Headlamp not working on main beam |4.1.1 |a| |ii||1
Nearside Front Lower Suspension component ball joint excessively worn |5.3.4 |a| |i||1
Windscreen washer jets misaligned and not providing sufficient fluid to the windscreen (3.5 (a))1
Power steering pipe/hose leaking (2.1.5 (a))1
Brake pedal spongy |3.3.B.1b|1
Nearside Front Anti-roll bar linkage has excessive play in a pin/bush |2.4.G.2|1
Driver`s door cannot be opened from outside the vehicle |6.2.B.1b|1
Headlamp aim headlamp not in good working order adversely affecting beam image |1.2.4b|1
Offside Front An item not tested |Manual|1
Offside Front brake disc has restricted free movement |3.5.1j|1
Offside Front Seat belt locking mechanism does not secure or release |5.2.5a|1
Offside Front Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Offside Track rod end ball joint has excessive play |2.2.B.1f|1
Offside Front Upper Suspension arm attachment bracket/mounting corroded and its strength is seriously reduced |2.4.G.1|1
Fuel cap/sealing device sealing washer missing |7.2.4c|1
Nearside Ball joint has excessive play |2.2.B.1f|1
Offside Ball joint has excessive play |2.2.B.1f|1
Offside Rear Fuel pipe leaking |7.2.3|1
Nearside Headlamp not in good working order |not working| |1.2.4a|1
Steering rack insecure |2.2.B.1a|1
Hazard warning switch faulty |1.4.B.1d|1
Nearside Front Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|1
Nearside Rear Front constant velocity joint gaiter split |2.5.C.1a|1
Nearside Rear brake caliper has restricted free movement |3.5.1k|1
Nearside Rear Exhaust has a major leak of exhaust gases |7.1.2|1
Nearside Front Drag link end ball joint has excessive play |2.2.B.1f|1
Offside Front Drag link end ball joint has excessive play |2.2.B.1f|1
Offside Obligatory mirror missing |8.1.1|1
Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a|1
Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a|1
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Offside Rear position lamp|s| missing |1.1.A.3a|1
Offside Headlamp insecure |1.7.3|1
Nearside Windscreen wiper blade deteriorated |8.2.2|1
Offside Windscreen wiper blade deteriorated |8.2.2|1
Nearside Rear Brake hose twisted |3.6.B.4c|1
Nearside Front Direction indicators not working |1.4.A.2c|1
Offside Front Side repeater not working |1.4.A.2c|1
Nearside Front position lamp|s| incorrect colour |1.1.A.3e|1
Offside Front position lamp|s| incorrect colour |1.1.A.3e|1
Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b|1
Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Nearside Ball joint has excessive play inner tie rod |2.2.B.1f|1
Nearside Front Upper Front suspension ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2|1
Offside Front Upper Front suspension ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2|1
Nearside Headlamp insecure |1.7.3|1
Offside Headlamp excessively damaged so that the light output is severely reduced |1.7.5a|1
Power steering inoperative |2.3.3a|1
Offside Rear Direction indicator not working |4.4.1 |a| |ii||1
Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|1
Offside Rear An item not tested |Manual|1
Rear brake application uneven1
Rear rear brake excessively fluctuating |3.7.B.3|1
Nearside Front Steering rack insecure |2.2.B.1a|1
Emissions not tested |7.0|1
Offside Front Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|1
Front passenger door cannot be opened from outside the vehicle |6.2.B.1b|1
Rear Shock absorber has negligible damping effect |2.7.5|1
Power steering malfunctioning |2.3.3a|1
Nearside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2|1
Offside Front Anti-roll bar linkage rubber mounting deteriorated resulting in excessive movement |2.4.G.2|1
Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2|1
Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Exhaust emits clearly visible black smoke during acceleration |7.3.A.2c|1
Emissions not tested |7.3.A.1|1
Nearside Front Steering arm has relative movement at its fixings |2.2.B.1h|1
Offside Rear Tie bar/rod severely distorted |2.4.G.1|1
Mechanical brake component has restricted free movement1
Offside Front Steering rack gaiter insecure |2.2.D.2d|1
Nearside Front Headlamp aim beam image kick up to the offside |1.6.B1|1
Offside Front Headlamp aim beam image kick up to the offside |1.6.B1|1
Nearside Rear Rear position lamp|s| excessively damaged so that it is not visible from a reasonable distance |1.1.A.3d|1
Offside Rear Rear position lamp|s| excessively damaged so that it is not visible from a reasonable distance |1.1.A.3d|1
Offside Front Direction indicator not working |1.4.A.2c|1
Stop lamp remains on when the brakes are released1
Nearside Rear Seat belt locking mechanism does not secure or release |5.2.5a|1
Offside Front Obligatory mirror missing |8.1.1|1
Nearside Front Windscreen wiper blade deteriorated |8.2.2|1
Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Brake pedal functionally incomplete |3.3.A.1a|1
Nearside Rear brake disc excessively pitted |3.5.1h|1
Offside Rear brake disc excessively pitted |3.5.1h|1
Nearside Front front brake binding |3.7.B.1|1
Offside Front front brake binding |3.7.B.1|1
Nearside Rear front brake binding |3.7.B.1|1
Offside Rear front brake binding |3.7.B.1|1
Headlamp levelling device inoperative (4.1.5 (a))1
Offside Rear Seat belt not functioning as intended (7.1.2 (c))1
Nearside Rear Shock absorbers has a serious fluid leak1
Nearside Front Headlamp not in good working order |not working| |1.2.4a|1
Offside Front Headlamp not in good working order |not working| |1.2.4a|1
Offside Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Front position lamp|s| not working |1.1.A.3b|1
Offside Rear position lamp|s| not working |1.1.A.3b|1
Nearside Rear Drive shaft which forms part of the suspension coupling gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.4.G.4e|1
Nearside Rear Fuel system component leaking |7.2.3|1
Offside Driver`s seat insecure |6.2.A.1|1
Nearside Front Front wheel bearing has excessive play |2.5.A.3c|1
Offside Rear Drive shaft which forms part of the suspension coupling gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.4.G.4e|1

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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