MOT History from tests of petrol BSA B31s year 1952

Review the list of common BSA B31 failures below or to perform a specific mot history check on your BSA then use our popular KnowYourCar service

mot history

Pass percent:87.18%

(The average a petrol BSA B31 year 1952 passes without issue)

Based on:117 MOT Tests

Most common failures	No# failures
Headlamp aim out of alignment	6
Rear position lamp does not illuminate immediately when it is switched on \|1.1.3a\|	1
Horn not working \|1.7.3a\|	1
Front Front suspension has excessive stiffness in the suspension movement. \|2.3.6b\|	1
Front Wheel spoke excessively loose \|4.2.1b\|	1
Nearside Front Footrest insecure \|6.2.1a\|	1
Front Shock absorber has negligible damping effect (5.3.2 (b))	1
Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i))	1
Offside Front Brake component insecure anchor plate bolt missing (1.1.21 (c))	1
Nearside Rear Brake pedal cannot be applied smoothly \|3.1.3d\|	1
Front Steering movement excessively stiff with the weight on the lower bearing \|2.2.1a\|	1
Front Roller brake test indicates a binding brake \|3.3.A1a\|	1
Rear Rear wheel bearings have excessive free play \|2.4.A.2c\|	1
Front Front shock absorber seal failed and leaking oil \|2.3.3\|	1
Stop lamp missing \|1.3.3a\|	1
Rear Brake back plate\|s\| insecure \|3.2.A1j\|	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
Headlamp aim out of alignment	6
Rear position lamp does not illuminate immediately when it is switched on \|1.1.3a\|	1
Horn not working \|1.7.3a\|	1
Front Front suspension has excessive stiffness in the suspension movement. \|2.3.6b\|	1
Front Wheel spoke excessively loose \|4.2.1b\|	1
Nearside Front Footrest insecure \|6.2.1a\|	1
Front Shock absorber has negligible damping effect (5.3.2 (b))	1
Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i))	1
Offside Front Brake component insecure anchor plate bolt missing (1.1.21 (c))	1
Nearside Rear Brake pedal cannot be applied smoothly \|3.1.3d\|	1
Front Steering movement excessively stiff with the weight on the lower bearing \|2.2.1a\|	1
Front Roller brake test indicates a binding brake \|3.3.A1a\|	1
Rear Rear wheel bearings have excessive free play \|2.4.A.2c\|	1
Front Front shock absorber seal failed and leaking oil \|2.3.3\|	1
Stop lamp missing \|1.3.3a\|	1
Rear Brake back plate\|s\| insecure \|3.2.A1j\|	1

MOT History from tests of petrol BSA B31s year 1952

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