MOT History from tests of petrol TRIUMPH STAGs year 1977

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

mot history

Pass percent:71.55%

(The average a petrol TRIUMPH STAG year 1977 passes without issue)

Based on:8,149 MOT Tests

Most common failures	No# failures
Exhaust emissions carbon monoxide content excessive \|7.3.B.1a\|	449
Headlamp aim out of alignment	331
Parking brake: efficiency below requirements \|3.7.B.7\|	250
Windscreen wiper does not clear the windscreen effectively	199
Rear brake binding	161
Registration plate lamp issues	144
Rear parking brake recording little or no effort	131
Brakes imbalanced across an axle	128
Nearside Stop lamp not working \|1.2.1b\|	94
Offside Stop lamp not working \|1.2.1b\|	84
Horn not working \|1.6.2a\|	80
Nearside Rear Direction indicator not working \|1.4.A.2c\|	79
Brake pipe excessively corroded	74
Exhaust emissions hydrocarbon content excessive \|7.3.B.1b\|	73
Offside Rear Direction indicator not working \|1.4.A.2c\|	64
Rear brake application uneven	57
Nearside Headlamp not working on dipped beam \|1.7.5a\|	54
Service brake: efficiency below requirements \|3.7.B.7\|	53
Offside Headlamp not working on main beam \|1.7.5a\|	53
Offside Steering rack gaiter split \|2.2.D.2d\|	50
Registration plate issues	48
Nearside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	44
Windscreen washer not working	43
Exhaust emissions carbon monoxide content excessive (8.2.1.2 (b))	43
Nearside Steering rack gaiter split \|2.2.D.2d\|	42
Offside Front Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	42
Nearside Headlamp not working on main beam \|1.7.5a\|	42
Offside Headlamp not working on dipped beam \|1.7.5a\|	42
Brake hose excessively deteriorated	41
Nearside Rear wheel bearing has excessive play \|2.6.2\|	36
Offside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	36
Parking brake lever has no reserve travel \|3.1.6b\|	32
Battery insecure \|1.9.1\|	32
Hazard warning lamps inoperative \|1.4.B.1b\|	31
Offside Rear wheel bearing has excessive play \|2.6.2\|	30
Offside Rear Stop lamp not working \|1.2.1b\|	30
Direction indicators flashing less than 60 times a minute \|1.4.A.2g\|	29
Nearside Rear Stop lamp not working \|1.2.1b\|	27
Hazard warning lamps not flashing in phase, with ignition off \|1.4.B.1f\|	26
Nearside Front position lamp\|s\| not working \|1.1.A.3b\|	25
Steering column top bearing excessively worn \|2.1.2c\|	25
Nearside Rear position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	25
Rear Mechanical brake component has restricted free movement	25
Nearside rear brake recording little or no effort \|3.7.B.5a\|	24
Offside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	24
Rear Exhaust system not adequately supported \|7.1.1\|	24
Nearside Front wheel bearing has excessive play \|2.5.A.3c\|	24
Nearside Track rod end ball joint has excessive play \|2.2.B.1f\|	24
Direction indicators not working \|1.4.A.2c\|	23
Nearside Rear position lamp\|s\| not working \|1.1.A.3b\|	23
Exhaust emissions carbon monoxide content excessive \|8.2.1.2 \|b\|\|	23
Hazard warning lamps not flashing in phase, with ignition on \|1.4.B.1f\|	23
Nearside Rear Suspension component mounting prescribed area is excessively corroded \|2.4.A.3\|	22
Hazard warning switch faulty \|1.4.B.1d\|	22
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\|	21
Nearside Rear Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	21
Nearside Side repeater not working \|1.4.A.2c\|	21
Offside Track rod end ball joint has excessive play \|2.2.B.1f\|	21
Offside Front wheel bearing has excessive play \|2.5.A.3c\|	20
Nearside Stop lamp adversely affected by the operation of another lamp \|1.2.1f\|	20
Exhaust has a major leak of exhaust gases \|7.1.2\|	20
Offside Front Direction indicator not working \|1.4.A.2c\|	20
Offside Rear position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	20
Offside rear brake recording little or no effort \|3.7.B.5a\|	19
Front brake application uneven	19
Nearside Front Track rod end ball joint has excessive play \|2.2.B.1f\|	19
Nearside Front suspension has excessive play in a lower suspension ball joint \|2.5.B.1a\|	18
Nearside Front Suspension arm has excessive play in a ball joint \|2.4.G.2\|	18
Offside Front Headlamp not working on main beam \|1.7.5a\|	18
Nearside Front Steering rack gaiter split \|2.2.D.2d\|	18
Offside Front Track rod end ball joint has excessive play \|2.2.B.1f\|	18
Front Windscreen wiper not operating automatically when switched on \|8.2.1b\|	17
Offside Front Steering rack gaiter split \|2.2.D.2d\|	17
Nearside front brake binding \|3.7.B.1\|	17
Nearside Front Direction indicator not working \|1.4.A.2c\|	16
Offside Rear Rear wheel bearing has excessive play \|2.6.2\|	16
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	16
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\|	16
Nearside Rear Rear wheel bearing has excessive play \|2.6.2\|	16
Offside front brake binding \|3.7.B.1\|	15
Offside Side repeater not working \|1.4.A.2c\|	15
Headlamp switch faulty \|1.7.1\|	15
Offside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	15
Nearside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	15
Offside Front position lamp\|s\| not working \|1.1.A.3b\|	15
Brake performance not tested \|3.7.A.1\|	14
Stop lamp not working \|1.2.1b\|	14
Offside Front Headlamp not working on dipped beam \|1.7.5a\|	14
Offside Rear position lamp\|s\| not working \|1.1.A.3b\|	14
Nearside Rear Direction indicators not working \|1.4.A.2c\|	14
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\|	14
Mechanical brake component has restricted free movement	14
Nearside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	14
Parking brake efficiency below requirements (1.4.2 (a) (i))	14
Offside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	14
Nearside Front Headlamp not working on main beam \|1.7.5a\|	13
Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	13
Offside Front suspension has excessive play in a lower suspension ball joint \|2.5.B.1a\|	13
Nearside Front Front wheel bearing has excessive play \|2.5.A.3c\|	13
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\|	13
Offside Front Front wheel bearing has excessive play \|2.5.A.3c\|	13
Fuel system component leaking \|7.2.3\|	13
Nearside Front Seat belt locking mechanism does not secure or release \|5.2.5a\|	13
Hazard warning tell tale not working correctly \|1.4.B.1e\|	13
Nearside Front Side repeater not working \|1.4.A.2c\|	12
Offside Front Suspension arm has excessive play in a ball joint \|2.4.G.2\|	12
Exhaust emissions hydrocarbon content excessive (8.2.1.2 (b))	12
Centre Exhaust has a major leak of exhaust gases \|7.1.2\|	12
Offside Rear Direction indicators not working \|1.4.A.2c\|	12
Offside Front Suspension arm has excessive play in a pin/bush \|2.4.G.2\|	12
Nearside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	12
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	12
Nearside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	12
Nearside Front Front position lamp\|s\| not working \|1.1.A.3b\|	12
Parking brake: efficiency below requirements \|3.7.C.1b\|	11
Nearside Front Lower Suspension arm has excessive play in a ball joint \|2.4.G.2\|	11
Offside Front Seat belt locking mechanism does not secure or release \|5.2.5a\|	11
Fuel cap/sealing device sealing washer torn \|7.2.4c\|	11
Offside Rear position lamp\|s\| excessively deteriorated so that it is not visible from a reasonable distance \|1.1.A.3d\|	11
Power steering component\|s\| leaking \|2.3.3b\|	11
Offside Front Seat belt retracting mechanism defective \|5.2.5b\|	11
Nearside Front Subframe mounting prescribed area is excessively corroded \|2.4.A.3\|	11
Offside Stop lamp adversely affected by the operation of another lamp \|1.2.1f\|	11
Nearside Windscreen wiper not operating automatically when switched on \|8.2.1b\|	11
Nearside Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	11
Nearside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.4.G.2\|	10
Offside Front Suspension arm ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt \|2.4.G.2\|	10
Offside Front front brake binding \|3.7.B.1\|	10
Offside Front Lower Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.4.G.2\|	10
Nearside Rear Service brake excessively binding (1.2.1 (f))	10
Nearside Front wheel bearing rough when rotated \|2.5.A.2\|	10
Nearside Rear Rear position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	10
Offside Steering rack gaiter insecure \|2.2.D.2d\|	10
Horn not loud enough to be heard by another road user \|1.6.2b\|	10
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\|	10
Offside Rear Seat belt anchorage prescribed area is excessively corroded \|5.2.6\|	10
rear brakes release unevenly \|3.7.B.4\|	10
Nearside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	10
Offside Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	10
Nearside Front Headlamp not working on dipped beam \|1.7.5a\|	9
Offside Front Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	9
Exhaust system not adequately supported \|7.1.1\|	9
Brake pedal creeps down when held under pressure \|3.3.B.1a\|	9
Offside Front Front position lamp\|s\| not working \|1.1.A.3b\|	9
Fuel pipe leaking \|7.2.3\|	9
Offside Rear rear brake recording little or no effort \|3.7.B.5a\|	9
Exhaust engine idle speed too high \|7.3.A.2a\|	9
Offside Rear Rear position lamp\|s\| adversely affected by the operation of another lamp \|1.1.A.3f\|	9
Offside Rear Direction indicator not working (4.4.1 (a) (ii))	9
Offside Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	9
Brake hydraulic reservoir fluid level below minimum level \|3.6.G.1b\|	9
Steering system has excessive free play detected at the steering wheel \|steering rack fitted\| \|2.2.A.1b\|	9
Nearside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.4.G.2\|	9
Offside Headlamp excessively deteriorated so that the light output is severely reduced \|1.7.5a\|	8
Steering column top mounting bracket insecure \|2.1.2d\|	8
Indicator switch faulty \|1.4.A.1\|	8
Offside Front Lower Suspension arm has excessive play in a ball joint \|2.4.G.2\|	8
All position lamps not working \|1.1.A.3b\|	8
Nearside Steering rack gaiter insecure \|2.2.D.2d\|	8
Nearside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	8
Offside Front Seat belt damaged sufficient to obstruct correct operation of the belt \|5.2.2a\|	8
Power steering pipe\|s\| or hose\|s\| leaking from a joint \|2.3.3b\|	8
Stop lamp(s) all not working (4.3.1 (a) (iii))	8
Nearside Front Track rod end ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.2.C.1c\|	8
Offside Windscreen wiper not operating automatically when switched on \|8.2.1b\|	8
Offside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt \|2.4.G.2\|	8
Offside Rear Brake cable has wires broken and is significantly weakened \|3.5.1b\|	8
Fuel cap/sealing device sealing washer missing \|7.2.4c\|	8
Offside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	7
Offside Front Side repeater not working \|1.4.A.2c\|	7
Front Exhaust has a major leak of exhaust gases \|7.1.2\|	7
Rear Exhaust has a major leak of exhaust gases \|7.1.2\|	7
Nearside Rear Position lamp not working (4.2.1 (a) (ii))	7
Brake pedal spongy \|3.3.B.1b\|	7
Nearside Rear Direction indicator not working (4.4.1 (a) (ii))	7
Offside Rear Rear position lamp\|s\| not working \|1.1.A.3b\|	7
Offside Rear Suspension spring mounting prescribed area is excessively corroded \|2.4.A.3\|	7
Nearside Direction indicators flashing less than 60 times a minute \|1.4.A.2g\|	7
Direction indicators flashing more than 120 times a minute \|1.4.A.2g\|	7
Nearside Front Brake pipe inadequately clipped \|3.6.B.1\|	7
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings \|6.1.B.2\|	7
Centre Seat belt insecurely fixed to the vehicles structure \|5.2.1a\|	7
Offside Front Headlamp aim beam image obviously incorrect \|1.8.A.1b\|	7

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 TRIUMPH STAGs year 1977

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