>

MOT History from tests of petrol TRIUMPH 25s year 1971

Review the list of common TRIUMPH 25 failures below or to perform a specific mot history check on your TRIUMPH then use our popular KnowYourCar service

mot history
Pass percent:78.84%
(The average a petrol TRIUMPH 25 year 1971 passes without issue)
Based on:709 MOT Tests
Most common failuresNo# failures
Parking brake: efficiency below requirements |3.7.B.7|33
Headlamp aim out of alignment23
Rear parking brake recording little or no effort18
Windscreen wiper does not clear the windscreen effectively14
Brakes imbalanced across an axle11
Registration plate lamp issues9
Rear brake binding9
Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|9
Brake hose excessively deteriorated7
Brake pipe excessively corroded7
Nearside Steering rack gaiter split |2.2.D.2d|7
Service brake: efficiency below requirements |3.7.B.7|7
Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3|6
Nearside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|6
Nearside Stop lamp not working |1.2.1b|5
Nearside Front wheel bearing has excessive play |2.5.A.3c|5
Rear brake application uneven5
Offside rear brake recording little or no effort |3.7.B.5a|5
Offside Steering rack gaiter split |2.2.D.2d|5
Offside Stop lamp not working |1.2.1b|5
Rear Exhaust system not adequately supported |7.1.1|5
Nearside Headlamp not working on dipped beam |1.7.5a|4
Offside Track rod end ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|4
Nearside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|4
Offside Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|4
Exhaust system not adequately supported |7.1.1|4
Offside Front Seat belt insecurely fixed to the vehicles structure |5.2.1a|3
Offside Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|3
Nearside rear brake recording little or no effort |3.7.B.5a|3
Offside Front Steering rack gaiter split |2.2.D.2d|3
Nearside Front Body has a sharp edge caused by corrosion |6.1.C.1|3
Offside Front wheel bearing has excessive play |2.5.A.3c|3
Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|3
Offside Track rod end ball joint has excessive play |2.2.B.1f|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
Steering system has excessive free play detected at the steering wheel |steering rack fitted| |2.2.A.1b|3
Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|3
Nearside Front Headlamp not working on dipped beam |1.7.5a|3
Offside Front Track rod end ball joint has excessive play |2.2.B.1f|3
Steering column movement between the shaft and steering wheel |2.1.2b|2
Offside Rear Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|2
Offside Headlamp not working on dipped beam |1.7.5a|2
Horn not working |1.6.2a|2
Nearside Front Track rod end ball joint has excessive play |2.2.B.1f|2
Brake pipe inadequately clipped |3.6.B.1|2
Front brake application uneven2
Nearside Front Suspension component mounting prescribed area is excessively corroded chassis |2.4.A.3|2
Offside Front Suspension component mounting prescribed area is excessively corroded chassis |2.4.A.3|2
Offside Rear Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|2
Windscreen washer not working 2
Nearside Rear Brake pipe inadequately clipped |3.6.B.1|2
Nearside Side repeater not working |1.4.A.2c|2
Offside Headlamp not working on main beam |1.7.5a|2
Nearside Rear wheel bearing has excessive play |2.6.2|2
Stop lamp not working |1.2.1b|2
Nearside Front Front wheel bearing rough when rotated |2.5.A.2|2
Offside Front Ball joint has excessive play |2.2.B.1f|2
Nearside Headlamp not working on main beam |1.7.5a|2
Offside Rear wheel bearing has excessive play |2.6.2|2
Offside Front position lamp|s| not working |1.1.A.3b|2
Offside Front Headlamp not working on dipped beam |1.7.5a|2
Nearside Front Seat belt insecurely fixed to the vehicles structure |5.2.1a|2
Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2|2
Nearside Front Lower Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Offside Front Lower Suspension component mounting prescribed area is excessively corroded |2.4.A.3|2
Nearside Rear rear brake recording little or no effort |3.7.B.5a|2
Offside Rear rear brake recording little or no effort |3.7.B.5a|2
Offside Steering arm has relative movement at its fixings |2.2.B.1h|2
Battery insecure and likely to cause a short circuit (4.13 (a) (ii))1
Exhaust system insecure (6.1.2 (a))1
Nearside Integral body structure inadequately repaired such that structural rigidity is significantly reduced sill (6.1.1 (d) (i))1
Offside Integral body structure inadequately repaired such that structural rigidity is significantly reduced sill (6.1.1 (d) (i))1
Offside Inner Front Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Rear Subframe mounting prescribed area is deliberately modified which significantly reduces the original strength |2.4.A.3|1
Offside Stop lamp adversely affected by the operation of another lamp |1.2.1f|1
Nearside Rear wheel bearing rough when rotated |2.6.1|1
Nearside Front Inner Suspension component mounting prescribed area excessively corroded significantly reducing structural strength inner arch in 2 places (5.3.6 (a) (i))1
Offside Front Inner Suspension arm pin or bush excessively worn bottom arm bush (5.3.4 (a) (i))1
Offside Rear Lower Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Outer Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Centre Exhaust has a major leak of exhaust gases |7.1.2|1
Offside Front Lower Tie bar/rod rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Direction indicator flashing less than 60 times a minute |1.4.A.2g|1
Nearside Rear Upper Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Inner Suspension arm rubber bush bonding deteriorated resulting in excessive movement |2.4.G.2|1
Centre Front Parking brake mechanism/associated mounting prescribed area is excessively corroded |3.1.9|1
Nearside Front Suspension component mounting prescribed area is excessively corroded inner arch to chassis area |2.4.A.3|1
Nearside Rear Suspension component mounting prescribed area is excessively corroded sill |2.4.A.3|1
Offside Rear Suspension component mounting prescribed area is excessively corroded sill |2.4.A.3|1
Nearside Rear Seat belt anchorage prescribed area is excessively corroded inner arch |5.2.6|1
Upper Steering column universal joint insecure |2.1.5|1
Nearside 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
Nearside Headlamp aim beam image kick up to the offside |1.8|1
Nearside Front Ball joint dust cover excessively deteriorated so that it no longer prevents the ingress of dirt |2.2.C.1c|1
Offside Front Body or chassis has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Front Body or chassis has an unsatisfactory modification, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Front Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Front Front suspension has excessive play in a track control arm inner bush |2.5.B.2b|1
Offside Front Front suspension has excessive play in a track control arm inner bush |2.5.B.2b|1
Windscreen wiper not working (3.4 (a))1
Nearside Front Position lamp not working (4.2.1 (a) (ii))1
Offside Headlamp not working on main beam (4.1.1 (a) (ii))1
Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i))1
Nearside Rear Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Offside Rear Drive shaft joint constant velocity boot split or insecure, no longer prevents the ingress of dirt (6.1.7 (g) (ii))1
Offside Rear Service brake excessively binding (1.2.1 (f))1
Nearside Indicator tell tale inoperative |1.4.A.2a|1
Offside Front Obligatory mirror insecure |8.1.1|1
Nearside Inner Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Rear Brake pipe fouled by moving parts |3.6.B.2a|1
Offside Rear Brake pipe fouled by moving parts |3.6.B.2a|1
Front Headlamp not working on main beam |1.7.5a|1
Offside Front Vehicle structure has excessive corrosion which adversely affects braking or steering |6.1.A.1|1
Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Body has a sharp edge caused by corrosion |6.1.C.1|1
Offside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f|1
Offside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h|1
Nearside Steering arm has relative movement at its fixings |2.2.B.1h|1
Parking brake lever ratchet mechanism is excessively worn |3.1.5|1
Windscreen has a sticker or other obstruction encroaching into the swept area by more than 40mm outside zone `A` |8.3.1e|1
Nearside Fuel pipe leaking |7.2.3|1
Windscreen wiper blade insecure1
Rear Exhaust mounting missing |7.1.1b|1
Offside Front Anti-roll bar insecure |2.4.G.1|1
Parking brake mechanism/associated mounting prescribed area is fractured |3.1.9|1
Nearside Outer Rear Lower Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Inner Lower Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Inner Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Offside Inner Rear Subframe mounting prescribed area is excessively corroded |2.4.A.3|1
Power steering pipe|s| or hose|s| excessively corroded |2.3.2|1
Nearside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Offside Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Rear Mechanical brake component has restricted free movement1
Nearside Rear Rear wheel bearing has excessive play |2.6.2|1
Nearside rear brake excessively fluctuating |3.7.B.3|1
Nearside front brake binding |3.7.B.1|1
Nearside Rear passenger seat cannot be secured in the upright position. |6.2.3|1
Nearside Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Offside Headlamp not in good working order adversely affecting beam image |1.2.4a|1
Offside Front Seat belt not functioning as intended (7.1.2 (c))1
Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i))1
Nearside Front Suspension component mounting prescribed area is inadequately repaired inner wheel arch (5.3.6 (a) (i))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 Rear coil spring fractured |2.4.C.1a|1
Offside Rear coil spring fractured |2.4.C.1a|1
Offside Rear Brake clevis joint excessively corroded and seriously weakened |3.5.1e|1
Exhaust engine idle speed too high |7.3.A.2a|1
Rear Exhaust has a major leak of exhaust gases |7.1.2|1
Upper Steering column flexible coupling is excessively deteriorated |2.1.5|1
Lower Steering column universal joint has excessive play |2.1.5|1
Offside Rear Lower Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Steering column retaining device insecure |2.1.6|1
Nearside Direction indicators not working |1.4.A.2c|1
Offside Direction indicators not working |1.4.A.2c|1
Lower Steering column retaining device insecure |2.1.6|1
Centre Rear Brake pipe inadequately clipped x2 |3.6.B.1|1
Nearside Rear Upper Suspension component mounting prescribed area is excessively corroded shock absorber mounting point |2.4.A.3|1
Offside Inner Rear Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Nearside Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Front Lower Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a|1
Offside Front Upper Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Rear passenger seat cannot be secured in the upright position. |6.2.3|1
Nearside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Nearside Outer Lower Seat belt anchorage prescribed area is excessively corroded |5.2.6|1
Steering column top bearing excessively worn |2.1.2c|1
Nearside Track rod end ball joint has excessive play |2.2.B.1f|1
Offside Rear Brake cable has a seized clevis joint pivot |3.5.1c|1
Offside Outer Headlamp not working on dipped beam |1.7.5a|1
Offside Front Headlamp not working on main beam |1.7.5a|1
Centre Exhaust system not adequately supported |7.1.1|1
Centre Fuel pipe leaking |7.2.3|1
Brake lever excessively corroded and seriously weakened |3.5.1e|1
Parking brake lever insecure |3.1.3b|1
Nearside Front Headlamp not working on main beam |1.7.5a|1
Offside Front Headlamp adversely affected by the operation of another lamp |1.7.5c|1
Registration plate issues1
Offside Front Obligatory mirror missing |8.1.1|1
Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Rear Direction indicators not working |1.4.A.2c|1
Offside Rear Brake pipe inadequately clipped |3.6.B.1|1
Offside Front Lower Power steering pipe|s| or hose|s| leaking steering rack area |2.3.3b|1
Offside Rear Lower Subframe mounting prescribed area is excessively corroded floor pan / inner wheel arch |2.4.A.3|1
Steering column has excessive movement up and down |2.2.2 |a||1
Offside Front Power steering pipe|s| or hose|s| leaking |2.3.3b|1
Offside Front Direction indicator not working |1.4.A.2c|1
Steering rack damaged and unserviceable |2.2.C.1d|1
Windscreen wiper not operating automatically when switched on |8.2.1b|1
Indicator switch faulty |1.4.A.1|1
Direction indicators not working |1.4.A.2c|1
Offside Rear Outer Suspension component mounting prescribed area is excessively corroded sill |2.4.A.3|1
Offside Rear Inner Suspension component mounting prescribed area is excessively corroded wheel arch |2.4.A.3|1
Nearside Front brake disc excessively pitted |3.5.1h|1
Offside Front brake disc excessively pitted |3.5.1h|1
Nearside Rear Brake clevis joint has restricted free movement |3.5.1k|1
Offside Rear Brake clevis joint has restricted free movement |3.5.1k|1
Oil leaking continuously from engine posing a serious risk to road safety oil filter (8.4.1 (a) (ii))1
Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d|1
Nearside Outer Rear Sub-frame corroded and seriously weakened |2.4.G.1|1
Offside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength chassis leg |5.3.6 |a| |i||1
Suspension component mounting prescribed area excessively corroded significantly reducing structural strength offside centre chassis rail |5.3.6 |a| |i||1
Offside Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Body has a sharp edge caused by corrosion |6.1.C.1|1
Nearside Front position lamp|s| not working |1.1.A.3b|1
Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f|1
Nearside Battery insecure |1.9.1|1
Offside Front Suspension arm ball joint dust cover excessively damaged so that it no longer prevents the ingress of dirt |2.4.G.2|1
Nearside Rear Brake pipe leaking |3.6.A.1|1
Steering component is not secure to the vehicle structure steering column loose |2.2.B.1a|1
Nearside Front Suspension component mounting prescribed area is inadequately repaired chassis leg /tack welded |2.4.A.3|1
Offside Front Suspension component mounting prescribed area is inadequately repaired chassis leg /tack welded |2.4.A.3|1
Steering column top mounting bracket insecure |2.1.2d|1
Steering rack insecure |2.2.B.1a|1
Nearside Front brake caliper locking device insecure |3.5.1l|1
Offside Front brake caliper locking device insecure |3.5.1l|1
Offside Front brake caliper leaking |3.6.A.1|1
Brake pedal creeps down when held under pressure |3.3.B.1a|1
Battery insecure |1.9.1|1
Nearside Headlamp aim beam image too far to the right |1.6.B4|1
Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2|1
Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2|1
Rear Fuel hose leaking |7.2.3|1
Parking brake efficiency below requirements |1.4.2 |a| |i||1
Parking |secondary brake| on a single line braking system imbalanced across an axle Axle 1 |1.3.1 |b| |i||1
Nearside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c||1
Offside Headlamp aim projected beam image is obviously incorrect |4.1.2 |c||1
Nearside Front Shock absorbers insecurely attached shock absorber lower bolt not secured |5.3.2 |a| |i||1
Power steering pipe|s| or hose|s| fouling other parts of the vehicle |2.3.2|1
Offside Rear Brake cable has wires broken and is significantly weakened |3.5.1b|1
Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i))1
Nearside Front Brake pipe leaking on a hydraulic braking system caliper connection (1.1.11 (b) (ii))1
Offside Front Suspension component mounting prescribed area excessively corroded significantly reducing structural strength |5.3.6 |a| |i||1
Offside Rear fog lamp not working |1.3.2b|1
Nearside Front Windscreen wiper blade deteriorated |8.2.2|1
Offside Front Windscreen wiper blade deteriorated |8.2.2|1
Offside Front Side repeater not working |1.4.A.2c|1
Offside Front Suspension arm worn and seriously weakened |2.4.G.1|1
Nearside Rear Radius arm cracked |2.4.G.1|1
Offside Rear Radius arm fractured |2.4.G.1|1
Offside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Rear Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2|1
Nearside Rear Lower Suspension spring mounting prescribed area is excessively corroded |2.4.A.3|1
Bonnet cannot be secured in the closed position |8.4.1|1
Nearside Front Lower Trailing arm corroded and seriously weakened |2.4.G.1|1
Offside Front Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a|1
Steering column shaft has excessive end float |2.1.3|1
Offside Front Lower Ball joint has excessive play |2.2.B.1f|1
Nearside Rear Shock absorber has a serious fluid leak |2.7.3|1
Fuel system component insecure |7.2.1|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 Seat belt damaged sufficient to obstruct correct operation of the belt |5.2.2a|1
Headlamp not working on dipped beam |1.7.5a|1
Headlamp aim not tested |1.8.A.1c|1
Horn emits two or more alternating tones |1.6.2d|1
Rear Brake cable has wires broken and is significantly weakened |3.5.1b|1
Offside Headlamp insecure |1.7.3|1
Rear Exhaust system not adequately supported Mount broke. |7.1.1|1
Nearside Front Headlamp aim not tested |1.8.A.1c|1
Direction indicators flashing less than 60 times a minute |1.4.A.2g|1
Front wheel bearing has excessive play |2.5.A.3c|1
Rear rear brakes release unevenly |3.7.B.4|1
Suspension component mounting prescribed area is excessively corroded |2.4.A.3|1
Nearside Front Tie bar/rod rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Front Tie bar/rod rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Nearside Rear Sub-frame rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Offside Rear Sub-frame rubber bush deteriorated resulting in excessive movement |2.4.G.2|1
Nearside Front Steering system has excessive free play detected at the steering wheel |steering box fitted| |2.2.A.1a|1
Offside Front Steering system has excessive free play detected at the steering wheel |steering box fitted| |2.2.A.1a|1
Offside Rear wheel cylinder locking device insecure |3.5.1l|1
Nearside Rear wheel cylinder locking device insecure |3.5.1l|1
Front Brake pipe inadequately clipped |3.6.B.1|1
Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2|1
Brake pedal has insufficient reserve movement |3.3.A.5|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.

Find us on Facebook

© KnowYourCar™ 2019. All rights reserved
Except where otherwise noted, content on our MOT statistics pages are licensed under a Creative Commons Attribution 4.0 International license.
You are free to redistribute the material in any medium or format as long as credit is given to KnowYourCar

WARNING: We have placed hidden watermarks in our data. We will take action against our data being used outside of these terms.

MOT Data licensed under the Open Government Licence v3.0

By using our site you are agreeing to our terms and conditions
Terms & Conditions  Privacy Policy