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MOT History from tests of petrol TRIUMPH UNKNOWNs year 1971

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

mot history
Pass percent:89.01%
(The average a petrol TRIUMPH UNKNOWN year 1971 passes without issue)
Based on:91 MOT Tests
Most common failuresNo# failures
Nearside front brake binding |3.7.B.1|1
Offside front brake binding |3.7.B.1|1
Rear brake binding1
Hazard warning lamps inoperative |1.4.B.1b|1
Rear Roller brake test indicates a sticking brake |3.3.A1a|1
Parking brake efficiency below requirements |1.4.2 |a| |i||1
Windscreen wiper does not clear the windscreen effectively1
Front Service brake excessively binding (1.2.1 (f))1
Service brake efficiency below requirements (1.2.2 (a) (i))1
Parking brake efficiency below requirements (1.4.2 (a) (i))1
Brakes imbalanced across an axle1
Stop lamp remains on when the brake is released |1.3.1e|1
Front position lamp missing |1.1.1a|1
Registration plate issues1
Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a|1
Horn control not functioning. |1.7.2b|1
Headlamp at least one does not illuminate on dipped beam |1.2.2a|i||1
Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a|1
Headlamp aim out of alignment1
Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4|1
Indicator switch insecure |1.5.4|1
Headlamp switch insecure |1.2.4|1
Floor brake test indicates a sticking brake |3.3.C2c|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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