MOT History from tests of petrol BENTLEY BENTLEYs year 1986

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

mot history

Pass percent:74.09%

(The average a petrol BENTLEY BENTLEY year 1986 passes without issue)

Based on:247 MOT Tests

Most common failures	No# failures
Parking brake: efficiency below requirements \|3.7.B.7\|	29
Rear parking brake recording little or no effort	16
Windscreen wiper does not clear the windscreen effectively	12
Parking brake lever has no reserve travel \|3.1.6b\|	9
Registration plate lamp issues	8
Brake pipe excessively corroded	8
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	7
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	5
Offside Headlamp not working on main beam \|1.7.5a\|	5
Exhaust emissions carbon monoxide content excessive \|7.3.B.1a\|	5
Parking brake: efficiency below requirements \|3.7.C.1b\|	5
Offside Front brake caliper leaking \|3.6.A.1\|	4
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	3
Brakes imbalanced across an axle	3
Offside Rear Shock absorber has a serious fluid leak \|2.7.3\|	3
Headlamp aim out of alignment	3
Service brake: efficiency below requirements \|3.7.B.7\|	3
Nearside Front Exhaust has a major leak of exhaust gases \|7.1.2\|	3
Nearside Headlamp not working on main beam \|1.7.5a\|	3
Nearside Rear Suspension arm corroded and seriously weakened \|2.4.G.1\|	2
Stop lamp remains on when the brakes are released	2
Exhaust emissions hydrocarbon content excessive \|7.3.B.1b\|	2
Power steering component\|s\| leaking \|2.3.3b\|	2
Offside Side repeater not working \|1.4.A.2c\|	2
Offside Headlamp not working on dipped beam \|1.7.5a\|	2
Brake pipe leaking \|3.6.A.1\|	2
Brake performance not tested \|3.7.A.1\|	2
Nearside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Offside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Nearside Rear brake caliper leaking \|3.6.A.1\|	2
Nearside Rear Stop lamp not working \|1.2.1b\|	2
Registration plate issues	2
Offside Windscreen wiper blade missing \|8.2.2\|	2
Nearside Rear Shock absorber has a serious fluid leak \|2.7.3\|	2
Offside Rear fog lamp not working \|1.3.2b\|	2
Front Headlamp not working on main beam \|1.7.5a\|	2
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	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 Rear brake caliper leaking \|3.6.A.1\|	1
Offside Rear Suspension arm corroded and seriously weakened \|2.4.G.1\|	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
Front Exhaust has part of the system excessively deteriorated \|7.1.1a\|	1
Lower Steering column universal joint is excessively deteriorated \|2.1.5\|	1
Front Headlamp not working on main beam both \|1.7.5a\|	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 Rear Rear position lamp\|s\| incorrect colour \|1.1.A.3e\|	1
Nearside Front Headlamp excessively damaged so that the light output is severely reduced \|1.7.5a\|	1
Fluid suspension unit leaking \|2.4.D.2\|	1
All position lamps not working \|1.1.A.3b\|	1
Indicator switch faulty \|1.4.A.1\|	1
Nearside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Offside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Offside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	1
Nearside Rear Suspension component mounting prescribed area is inadequately repaired \|2.4.A.3\|	1
Offside Front Steering rack gaiter split \|2.2.D.2d\|	1
Nearside Front All position lamps not working \|1.1.A.3b\|	1
Offside Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Nearside Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	1
Offside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	1
Offside Front Direction indicator not working \|1.4.A.2c\|	1
Nearside Front Shock absorber has a serious fluid leak \|2.7.3\|	1
Nearside Front Shock absorber has an excessively worn bush shock lower balljoint \|2.7.4\|	1
Fluid suspension leaking \|2.4.D.2\|	1
Nearside Rear Fluid suspension pipe leaking \|2.4.D.2\|	1
Nearside Rear Fluid suspension leaking shock \|2.4.D.2\|	1
Nearside Rear wheel bearing has excessive play \|2.6.2\|	1
Offside Rear wheel bearing has excessive play \|2.6.2\|	1
Nearside rear brake recording little or no effort \|3.7.B.5a\|	1
Offside rear brake recording little or no effort \|3.7.B.5a\|	1
Nearside Front wheel bearing has excessive play \|2.5.A.3c\|	1
Offside Rear Stop lamp not working \|1.2.1b\|	1
Nearside Front Side repeater not working (4.4.1 (a) (ii))	1
Windscreen washer not working	1
Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))	1
Front Windscreen wiper blade missing x 2 \|8.2.2\|	1
Nearside Rear Drive shaft joint constant velocity boot missing (6.1.7 (g) (ii))	1
Offside Rear Drive shaft joint constant velocity boot missing (6.1.7 (g) (ii))	1
Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))	1
Offside Front Direction indicator not working (4.4.1 (a) (ii))	1
Headlamp does not operate immediately when selected on main beam both main beams do not stay on when selected \|1.7.4a\|	1
Nearside Parking brake recording little or no effort \|3.7.D.3a\|	1
Offside Parking brake recording little or no effort \|3.7.D.3a\|	1
Nearside Rear Subframe mounting prescribed area is excessively corroded outer/inner sill join \|2.4.A.3\|	1
Offside Rear Subframe mounting prescribed area is excessively corroded inner/outer sill join \|2.4.A.3\|	1
Parking brake: efficiency below requirements \|3.7.D.4\|	1
Headlamp not working on main beam \|1.7.5a\|	1
Headlamp does not operate immediately when selected on main beam \|1.7.4a\|	1
Parking brake is not capable of being maintained in operation by direct mechanical action only \|3.1.2\|	1
Nearside Headlamp does not operate immediately when selected on main beam \|1.7.4a\|	1
Offside Headlamp does not operate immediately when selected on main beam \|1.7.4a\|	1
Nearside Rear Fluid suspension unit leaking \|2.4.D.2\|	1
Front Exhaust has a major leak of exhaust gases \|7.1.2\|	1
Nearside Steering rack gaiter insecure \|2.2.D.2d\|	1
Nearside Front Steering rack gaiter insecure \|2.2.D.2d\|	1
Front brake application uneven	1
Offside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	1
Offside Front suspension has excessive play in a lower suspension ball joint \|2.5.B.1a\|	1
Nearside Exhaust has a major leak of exhaust gases \|7.1.2\|	1
Nearside Outer Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Nearside Front Tie bar/rod has excessive play in a pin/bush \|2.4.G.2\|	1
Offside Rear Fluid suspension unit leaking \|2.4.D.2\|	1
Dipswitch operation does not extinguish all main beam headlamps leaving at least one pair of dipped beam headlamps \|1.7.4b\|	1
Rear brake binding	1
Hydraulic brake cylinder leaking hydraulic fluid \|3.6.A.1\|	1
Rear fog lamp switch faulty \|1.3.1a\|	1
Nearside Front Direction indicator incomplete \|1.5.A1b\|	1
Nearside Front Direction indicator incorrect colour \|1.4.A.2f\|	1
Nearside Rear Shock absorber has negligible damping effect \|2.7.5\|	1
Offside Rear Shock absorber has negligible damping effect \|2.7.5\|	1
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	1
Power steering pipe\|s\| or hose\|s\| excessively damaged \|2.3.2\|	1
Nearside Rear Rear wheel bearing has excessive play \|2.6.2\|	1
Nearside Front Shock absorber has an excessively worn shock absorber pivot \|2.7.4\|	1
Offside Front Shock absorber has an excessively worn linkage \|2.7.4\|	1
Braking system leaking \|3.6.A.1\|	1
Nearside Front Braking system leaking \|3.6.A.1\|	1
Offside Front Lower Front suspension has excessive movement at a suspension ball joint \|2.5.A.1c\|	1
Nearside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	1
Nearside Rear Lower Coil spring mounting corroded and seriously weakened \|2.4.C.3c\|	1
Offside Power steering pipe\|s\| or hose\|s\| leaking from a joint \|2.3.3b\|	1
Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	1
Headlamp switch faulty \|1.7.1\|	1
Nearside Rear Parking brake lever has no reserve travel \|3.1.6b\|	1
Front Headlamp not working on dipped beam \|1.7.5a\|	1
Rear Coil spring mounting corroded and seriously weakened \|2.4.C.3c\|	1
Power steering pipe\|s\| or hose\|s\| leaking \|2.3.3b\|	1
Offside Front Fluid suspension accumulator leaking \|2.4.D.2\|	1
Offside Rear Lower Shock absorber has a serious fluid leak \|2.7.3\|	1
Nearside Rear Lower Suspension arm corroded and seriously weakened \|2.4.G.1\|	1
Front Windscreen wiper not operating automatically when switched on \|8.2.1b\|	1
Front Power steering component\|s\| leaking from a failed seal \|2.3.3b\|	1
Nearside Inner Exhaust has a major leak of exhaust gases \|7.1.2\|	1
Offside Inner Exhaust has a major leak of exhaust gases \|7.1.2\|	1
Nearside Rear rear brake recording little or no effort \|3.7.B.5a\|	1
Exhaust tailpipe not capable of allowing the emission probe to be inserted \|7.3.B.1\|	1
Nearside Rear Brake pipe leaking \|3.6.A.1\|	1
Parking brake lever defective so that it cannot be satisfactorily operated \|3.1.3c\|	1
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	1
Nearside Side repeater incomplete \|1.5.A1b\|	1
Anti-lock braking system warning lamp indicates an ABS fault	1
Nearside Windscreen wiper blade missing \|8.2.2\|	1
Hazard warning switch faulty \|1.4.B.1d\|	1
Front position lamp\|s\| not working \|1.1.A.3b\|	1
Nearside Front Direction indicator not working \|1.4.A.2c\|	1
Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement \|7.2.4b\|	1
Nearside Rear Coil spring mounting corroded and seriously weakened \|2.4.C.3c\|	1
Offside Rear Coil spring mounting corroded and seriously weakened \|2.4.C.3c\|	1
Offside Rear Fluid suspension leaking \|2.4.D.2\|	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.

Got suggestions? We’re improving this section all the time. If you have any suggestions, please let us know.

Most common failures	No# failures
Parking brake: efficiency below requirements \|3.7.B.7\|	29
Rear parking brake recording little or no effort	16
Windscreen wiper does not clear the windscreen effectively	12
Parking brake lever has no reserve travel \|3.1.6b\|	9
Registration plate lamp issues	8
Brake pipe excessively corroded	8
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	7
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	5
Offside Headlamp not working on main beam \|1.7.5a\|	5
Exhaust emissions carbon monoxide content excessive \|7.3.B.1a\|	5
Parking brake: efficiency below requirements \|3.7.C.1b\|	5
Offside Front brake caliper leaking \|3.6.A.1\|	4
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	3
Brakes imbalanced across an axle	3
Offside Rear Shock absorber has a serious fluid leak \|2.7.3\|	3
Headlamp aim out of alignment	3
Service brake: efficiency below requirements \|3.7.B.7\|	3
Nearside Front Exhaust has a major leak of exhaust gases \|7.1.2\|	3
Nearside Headlamp not working on main beam \|1.7.5a\|	3
Nearside Rear Suspension arm corroded and seriously weakened \|2.4.G.1\|	2
Stop lamp remains on when the brakes are released	2
Exhaust emissions hydrocarbon content excessive \|7.3.B.1b\|	2
Power steering component\|s\| leaking \|2.3.3b\|	2
Offside Side repeater not working \|1.4.A.2c\|	2
Offside Headlamp not working on dipped beam \|1.7.5a\|	2
Brake pipe leaking \|3.6.A.1\|	2
Brake performance not tested \|3.7.A.1\|	2
Nearside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Offside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	2
Nearside Rear brake caliper leaking \|3.6.A.1\|	2
Nearside Rear Stop lamp not working \|1.2.1b\|	2
Registration plate issues	2
Offside Windscreen wiper blade missing \|8.2.2\|	2
Nearside Rear Shock absorber has a serious fluid leak \|2.7.3\|	2
Offside Rear fog lamp not working \|1.3.2b\|	2
Front Headlamp not working on main beam \|1.7.5a\|	2
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	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 Rear brake caliper leaking \|3.6.A.1\|	1
Offside Rear Suspension arm corroded and seriously weakened \|2.4.G.1\|	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
Front Exhaust has part of the system excessively deteriorated \|7.1.1a\|	1
Lower Steering column universal joint is excessively deteriorated \|2.1.5\|	1
Front Headlamp not working on main beam both \|1.7.5a\|	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 Rear Rear position lamp\|s\| incorrect colour \|1.1.A.3e\|	1
Nearside Front Headlamp excessively damaged so that the light output is severely reduced \|1.7.5a\|	1
Fluid suspension unit leaking \|2.4.D.2\|	1
All position lamps not working \|1.1.A.3b\|	1
Indicator switch faulty \|1.4.A.1\|	1
Nearside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Offside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Offside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	1
Nearside Rear Suspension component mounting prescribed area is inadequately repaired \|2.4.A.3\|	1
Offside Front Steering rack gaiter split \|2.2.D.2d\|	1
Nearside Front All position lamps not working \|1.1.A.3b\|	1
Offside Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Nearside Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	1
Offside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	1
Offside Front Direction indicator not working \|1.4.A.2c\|	1
Nearside Front Shock absorber has a serious fluid leak \|2.7.3\|	1
Nearside Front Shock absorber has an excessively worn bush shock lower balljoint \|2.7.4\|	1
Fluid suspension leaking \|2.4.D.2\|	1
Nearside Rear Fluid suspension pipe leaking \|2.4.D.2\|	1
Nearside Rear Fluid suspension leaking shock \|2.4.D.2\|	1
Nearside Rear wheel bearing has excessive play \|2.6.2\|	1
Offside Rear wheel bearing has excessive play \|2.6.2\|	1
Nearside rear brake recording little or no effort \|3.7.B.5a\|	1
Offside rear brake recording little or no effort \|3.7.B.5a\|	1
Nearside Front wheel bearing has excessive play \|2.5.A.3c\|	1
Offside Rear Stop lamp not working \|1.2.1b\|	1
Nearside Front Side repeater not working (4.4.1 (a) (ii))	1
Windscreen washer not working	1
Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))	1
Front Windscreen wiper blade missing x 2 \|8.2.2\|	1
Nearside Rear Drive shaft joint constant velocity boot missing (6.1.7 (g) (ii))	1
Offside Rear Drive shaft joint constant velocity boot missing (6.1.7 (g) (ii))	1
Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))	1
Offside Front Direction indicator not working (4.4.1 (a) (ii))	1
Headlamp does not operate immediately when selected on main beam both main beams do not stay on when selected \|1.7.4a\|	1
Nearside Parking brake recording little or no effort \|3.7.D.3a\|	1
Offside Parking brake recording little or no effort \|3.7.D.3a\|	1
Nearside Rear Subframe mounting prescribed area is excessively corroded outer/inner sill join \|2.4.A.3\|	1
Offside Rear Subframe mounting prescribed area is excessively corroded inner/outer sill join \|2.4.A.3\|	1
Parking brake: efficiency below requirements \|3.7.D.4\|	1
Headlamp not working on main beam \|1.7.5a\|	1
Headlamp does not operate immediately when selected on main beam \|1.7.4a\|	1
Parking brake is not capable of being maintained in operation by direct mechanical action only \|3.1.2\|	1
Nearside Headlamp does not operate immediately when selected on main beam \|1.7.4a\|	1
Offside Headlamp does not operate immediately when selected on main beam \|1.7.4a\|	1
Nearside Rear Fluid suspension unit leaking \|2.4.D.2\|	1
Front Exhaust has a major leak of exhaust gases \|7.1.2\|	1
Nearside Steering rack gaiter insecure \|2.2.D.2d\|	1
Nearside Front Steering rack gaiter insecure \|2.2.D.2d\|	1
Front brake application uneven	1
Offside Front Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	1
Offside Front suspension has excessive play in a lower suspension ball joint \|2.5.B.1a\|	1
Nearside Exhaust has a major leak of exhaust gases \|7.1.2\|	1
Nearside Outer Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	1
Nearside Front Tie bar/rod has excessive play in a pin/bush \|2.4.G.2\|	1
Offside Rear Fluid suspension unit leaking \|2.4.D.2\|	1
Dipswitch operation does not extinguish all main beam headlamps leaving at least one pair of dipped beam headlamps \|1.7.4b\|	1
Rear brake binding	1
Hydraulic brake cylinder leaking hydraulic fluid \|3.6.A.1\|	1
Rear fog lamp switch faulty \|1.3.1a\|	1
Nearside Front Direction indicator incomplete \|1.5.A1b\|	1
Nearside Front Direction indicator incorrect colour \|1.4.A.2f\|	1
Nearside Rear Shock absorber has negligible damping effect \|2.7.5\|	1
Offside Rear Shock absorber has negligible damping effect \|2.7.5\|	1
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	1
Power steering pipe\|s\| or hose\|s\| excessively damaged \|2.3.2\|	1
Nearside Rear Rear wheel bearing has excessive play \|2.6.2\|	1
Nearside Front Shock absorber has an excessively worn shock absorber pivot \|2.7.4\|	1
Offside Front Shock absorber has an excessively worn linkage \|2.7.4\|	1
Braking system leaking \|3.6.A.1\|	1
Nearside Front Braking system leaking \|3.6.A.1\|	1
Offside Front Lower Front suspension has excessive movement at a suspension ball joint \|2.5.A.1c\|	1
Nearside Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	1
Nearside Rear Lower Coil spring mounting corroded and seriously weakened \|2.4.C.3c\|	1
Offside Power steering pipe\|s\| or hose\|s\| leaking from a joint \|2.3.3b\|	1
Headlamp not in good working order adversely affecting beam image \|1.2.4a\|	1
Headlamp switch faulty \|1.7.1\|	1
Nearside Rear Parking brake lever has no reserve travel \|3.1.6b\|	1
Front Headlamp not working on dipped beam \|1.7.5a\|	1
Rear Coil spring mounting corroded and seriously weakened \|2.4.C.3c\|	1
Power steering pipe\|s\| or hose\|s\| leaking \|2.3.3b\|	1
Offside Front Fluid suspension accumulator leaking \|2.4.D.2\|	1
Offside Rear Lower Shock absorber has a serious fluid leak \|2.7.3\|	1
Nearside Rear Lower Suspension arm corroded and seriously weakened \|2.4.G.1\|	1
Front Windscreen wiper not operating automatically when switched on \|8.2.1b\|	1
Front Power steering component\|s\| leaking from a failed seal \|2.3.3b\|	1
Nearside Inner Exhaust has a major leak of exhaust gases \|7.1.2\|	1
Offside Inner Exhaust has a major leak of exhaust gases \|7.1.2\|	1
Nearside Rear rear brake recording little or no effort \|3.7.B.5a\|	1
Exhaust tailpipe not capable of allowing the emission probe to be inserted \|7.3.B.1\|	1
Nearside Rear Brake pipe leaking \|3.6.A.1\|	1
Parking brake lever defective so that it cannot be satisfactorily operated \|3.1.3c\|	1
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	1
Nearside Side repeater incomplete \|1.5.A1b\|	1
Anti-lock braking system warning lamp indicates an ABS fault	1
Nearside Windscreen wiper blade missing \|8.2.2\|	1
Hazard warning switch faulty \|1.4.B.1d\|	1
Front position lamp\|s\| not working \|1.1.A.3b\|	1
Nearside Front Direction indicator not working \|1.4.A.2c\|	1
Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement \|7.2.4b\|	1
Nearside Rear Coil spring mounting corroded and seriously weakened \|2.4.C.3c\|	1
Offside Rear Coil spring mounting corroded and seriously weakened \|2.4.C.3c\|	1
Offside Rear Fluid suspension leaking \|2.4.D.2\|	1

MOT History from tests of petrol BENTLEY BENTLEYs year 1986

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