MOT failure rate and common problems for the Bsa Blue, and how to check your own car by registration.

Updated 05 September 2026.

9.8%fail rate

Bsa Blue MOT failure rate

What a Bsa Blue fails its MOT on, and the part that fixes each.

What it fails on, and why

Brakes22.2% of failures

Brake failures cover worn pads and discs, an imbalance between wheels, corroded or scored discs, or a binding caliper. Braking efficiency is measured on a rolling road, so a spongy or pulling brake shows up as a low reading.

Steering11.1% of failures

Steering faults are typically worn track-rod ends or ball joints, play in the rack, or a split gaiter letting grease out and dirt in. Excessive free play at the wheel fails.

Fuel system11.1% of failures

Fuel-system failures are leaks or an insecure filler cap.

Other11.1% of failures

This covers a range of smaller items, from a non-working horn to a warning light left on.

Lamps & electrical11.1% of failures

Lighting is the single most common MOT failure and the cheapest to put right. A blown headlight, brake-light or number-plate bulb, a cracked lens, or a headlamp beam that points too high or low will all fail. Most are a two-minute bulb swap.

The parts that fix each

If your car has just failed, you have 10 working days to fix the items and get a free partial retest. Confirm the exact fitment against your registration or VIN before buying.

For the brakes failure: Bsa Blue brake pads and discsShop Bsa Blue brake pads and discs on Amazonaffiliate Find Bsa Blue brake pads and discs on eBayaffiliate

For the steering failure: Bsa Blue steering track rod endsShop Bsa Blue steering track rod ends on Amazonaffiliate Find Bsa Blue steering track rod ends on eBayaffiliate

For the lamps & electrical failure: Bsa Blue headlight and indicator bulbsShop Bsa Blue headlight and indicator bulbs on Amazonaffiliate Find Bsa Blue headlight and indicator bulbs on eBayaffiliate

Other models

All Bsa models MOT failure rates comparedRanked worst to best Bsa A10 MOT failures7.9% failure rate Bsa Bantam MOT failures10.3% failure rate Ford Fiesta MOT failures27.1% failure rate

Questions and answers

What is the MOT failure rate of the Bsa Blue?

It fails 9.8% of its MOT tests across the DVSA record, from 92 tests.

What do these cars fail their MOT on most?

The most common failure area is brakes, at 22.2% of this model's failures.