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MOT History from tests of petrol PORSCHE 928s year 1978

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:74.73%
(The average a petrol PORSCHE 928 year 1978 passes without issue)
Based on:281 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment22
Brake hose excessively deteriorated10
Registration plate lamp issues10
Nearside Headlamp not working on main beam |1.7.5a|7
Windscreen wiper does not clear the windscreen effectively7
Exhaust emissions carbon monoxide content excessive |7.3.B.1a|7
Rear brake binding6
Registration plate issues6
Offside Rear Seat belt retracting mechanism defective |5.2.5b|6
Parking brake: efficiency below requirements |3.7.B.7|5
Brake hose damaged5
Parking brake lever has no reserve travel |3.1.6b|5
Offside Rear Direction indicator not working |1.4.A.2c|4
Horn not working |1.6.2a|4
Nearside Stop lamp not working |1.2.1b|4
Brakes imbalanced across an axle4
Nearside Headlamp not working on dipped beam |1.7.5a|4
Offside Steering rack gaiter split |2.2.D.2d|3
Offside Headlamp insecure |1.7.3|3
Nearside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a|3
All position lamps not working |1.1.A.3b|3
Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a|3
Nearside Front Direction indicator not working |1.4.A.2c|3
Offside Headlamp not working on dipped beam |1.7.5a|3
Mechanical brake component has restricted free movement3
Rear Mechanical brake component has restricted free movement3
Rear An item not tested |Manual|2
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Centre Obligatory mirror missing |8.1.1|2
Offside Headlamp excessively deteriorated so that the light output is severely reduced |1.7.5a|2
Nearside front brake binding |3.7.B.1|2
Windscreen wiper blade deteriorated |8.2.2|2
Offside Front front brake binding |3.7.B.1|2
Nearside Headlamp aim beam image kick up to the offside |1.8|2
Offside Headlamp aim beam image kick up to the offside |1.8|2
Nearside Front position lamp|s| not working |1.1.A.3b|2
Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|2
Steering rack damaged and unserviceable |2.2.C.1d|2
Offside Headlamp aim not tested |1.8.A.1c|2
Nearside Rear position lamp|s| not working |1.1.A.3b|2
Offside Front Coil spring not correctly located |2.4.C.2|2
Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Speedometer cannot be illuminated. |6.7.3|1
Centre Exhaust system not adequately supported |7.1.1|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 Front Upper Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2|1
Nearside Steering rack gaiter insecure |2.2.D.2d|1
Rear fog lamp not working |1.3.2b|1
Nearside Headlamp aim beam image obviously incorrect |1.8.A.1b|1
Offside Headlamp aim beam image obviously incorrect |1.8.A.1b|1
Nearside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Offside Rear Inner Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt |6.1.7 |g| |ii||1
Offside Front Upper Suspension arm ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii||1
Nearside Front Upper Suspension arm ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii||1
Nearside Stop lamp|s| not working |4.3.1 |a| |ii||1
Offside Stop lamp|s| not working |4.3.1 |a| |ii||1
Rear fog lamp switch inoperative stuck on |4.5.3 |a| |ii||1
Headlamp levelling device inoperative |4.1.5 |a||1
Offside Front Wheel bearing rough when rotated |5.1.3 |b| |i||1
Front brake application uneven1
Inner Obligatory mirror missing |8.1.1|1
Offside Obligatory mirror seriously deteriorated, affecting the rear view |8.1.2a|1
Offside Obligatory mirror is incapable of being adjusted to provide an adequate view to the rear |8.1.2b|1
Nearside Outer Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
All position lamps adversely affected by the operation of another lamp |1.1.A.3f|1
Offside Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Offside Obligatory mirror seriously damaged, affecting the rear view |8.1.2a|1
Nearside Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Side repeater not working |1.4.A.2c|1
Offside Rear fog lamp not working |1.3.2b|1
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|1
Power steering inoperative |2.3.3a|1
Nearside Front front brake binding |3.7.B.1|1
Rear parking brake recording little or no effort1
Offside Rear Parking |secondary brake| on a single line braking system has inadequate effort at a wheel |1.3.1 |a| |i||1
Brake lever has insufficient reserve travel parking |1.1.2 |a||1
Nearside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2|1
Offside Front Lower Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.4.G.2|1
Nearside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a|1
Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a|1
Nearside Front Inner Steering pivot point has excessive play |2.2.B.1g|1
Offside Rear rear brake recording little or no effort PARKING |3.7.B.5a|1
Offside Rear Rear position lamp|s| missing |1.1.A.3a|1
Exhaust has a major leak of exhaust gases |7.1.2|1
Front Horn not loud enough to be heard by another road user |1.6.2b|1
Service brake: efficiency below requirements |3.7.B.7|1
Fuel cap/sealing device does not fasten securely by positive means srew in cap? |7.2.4b|1
Hazard warning switch faulty not working |1.4.B.1d|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
Exhaust emissions carbon monoxide content excessive 7.32 |7.3.B.1a|1
Offside Front Seat belt insecurely fixed to the vehicles structure |5.2.1a|1
Indicator tell tale inoperative |1.4.A.2a|1
Nearside Side repeater not working |1.4.A.2c|1
Headlamp not working on dipped beam |1.7.5a|1
Headlamp not working on main beam |1.7.5a|1
Offside Stop lamp not working |1.2.1b|1
Nearside Front Lower Seat belt anchorage prescribed area is fractured |5.2.6|1
Fuel system component insecure |7.2.1|1
Nearside Front Lower Ball joint has excessive play |2.2.B.1f|1
Offside Front Lower Ball joint has excessive play |2.2.B.1f|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 Inner Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Inner Front Upper Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Nearside Rear Brake hose bulging under pressure |3.6.B.3|1
Offside Rear Brake hose bulging under pressure |3.6.B.3|1
Stop lamp not working |1.2.1b|1
Nearside Rear Direction indicator not working |1.4.A.2c|1
Offside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h|1
Front Windscreen wiper blade deteriorated |8.2.2|1
Rear brake disc in such a condition that it is seriously weakened1
Offside Front brake caliper has restricted free movement |3.5.1k|1
Nearside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2|1
Offside Front Upper Suspension arm has excessive play in a pin/bush |2.4.G.2|1
Offside Front Lower Shock absorber has an excessively worn bush |2.7.4|1
Offside Seat belt anchorage prescribed area is fractured |5.2.6|1
Offside Front Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c|1
Nearside Front Headlamp not working on main beam |1.7.5a|1
Nearside Front Lower Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|1
Offside Front Lower Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|1
Nearside Front Front wheel bearing rough when rotated |2.5.A.2|1
Offside Front Front wheel bearing rough when rotated |2.5.A.2|1
Offside front brake binding |3.7.B.1|1
Nearside Front Front passenger door cannot be opened from inside the vehicle |6.2.B.1b|1
Nearside Front Front passenger door cannot be opened from outside the vehicle |6.2.B.1b|1
Offside Rear Passenger`s seat cannot be secured in the upright position. |6.2.A.2|1
Offside Front Driver`s seat insecure bolt missing |6.2.A.1|1
Obligatory mirror missing |8.1.1|1
Nearside Rear Statutory seat belt missing |5.1.1|1
Headlamp not in good working order |not working| |1.2.4a|1
Rear Exhaust has a part missing |7.1.1a|1
Rear Fuel pipe leaking |7.2.3|1
Nearside Front Front wheel bearing has excessive play |2.5.A.3c|1
Emissions not tested |7.0|1
Offside Front Steering rack gaiter split |2.2.D.2d|1
Tailgate cannot be secured in the closed position |6.4.1|1
Rear Exhaust has a major leak of exhaust gases |7.1.2|1
Rear Exhaust system not adequately supported |7.1.1|1
Exhaust emits visible black smoke at idle |7.3.A.2b|1
Exhaust emits dense blue smoke at idle |7.3.A.2b|1
Nearside Headlamp aim not tested |1.8.A.1c|1
Centre Rear Brake clevis joint excessively corroded and seriously weakened |3.5.1e|1
Nearside Front Brake hose bulging under pressure |3.6.B.3|1
Offside Front Brake hose bulging under pressure |3.6.B.3|1
Offside Headlamp flickers when tapped lightly by hand |1.2.4c|1
Offside Rear Seat belt locking mechanism does not secure or release |5.2.5a|1
Offside Rear position lamp|s| not working |1.1.A.3b|1
Nearside Rear Seat belt retracting mechanism defective |5.2.5b|1
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings Floor |6.1.B.2|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
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
Nearside Headlamp insecure |1.7.3|1
Offside Front Direction indicator not working |1.4.A.2c|1
Hazard warning switch faulty |1.4.B.1d|1
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Headlamp not working on main beam |1.7.5a|1
Nearside Rear Direction indicators not working |1.4.A.2c|1
Nearside Front Direction indicators flashing more than 120 times a minute |1.4.A.2g|1
Nearside Rear brake caliper has restricted free movement |3.5.1k|1
Nearside Front brake caliper has restricted free movement |3.5.1k|1
Front brake caliper securing device loose |3.5.1j|1
Brake performance not tested |3.7.A.1|1
Service brake: efficiency below requirements |3.7.C.1a|1
Parking brake: efficiency below requirements |3.7.C.1b|1
Offside Rear Drive shaft which forms part of the suspension coupling gaiter insecure to the extent that it no longer prevents the ingress of dirt etc |2.4.G.4e|1
Nearside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|1
Nearside Rear Stop lamp not working |1.2.1b|1
Offside Rear Stop lamp not working |1.2.1b|1
Exhaust emissions carbon monoxide content excessive 8.00 |7.3.B.1a|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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