Know Your MOT

MOT failure rate and common problems for the Mash 250, and how to check your own car by registration.

Updated 05 September 2026.

13.8%fail rate

Mash 250 MOT failure rate

What a Mash 250 fails its MOT on, and the part that fixes each.

What it fails on, and why

Lamps & electrical50.0% 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.

Other12.5% of failures

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

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 lamps & electrical failure: Mash 250 headlight and indicator bulbsShop Mash 250 headlight and indicator bulbs on AmazonaffiliateFind Mash 250 headlight and indicator bulbs on eBayaffiliate

Other models

Mash Xy MOT failures12.7% failure rateMash Fifty MOT failures24.9% failure rateMash Black MOT failures28.7% failure rateFord Fiesta MOT failures27.1% failure rate

Questions and answers

What is the MOT failure rate of the Mash 250?

It fails 13.8% of its MOT tests across the DVSA record, from 58 tests.

What do these cars fail their MOT on most?

The most common failure area is lamps & electrical, at 50.0% of this model's failures.