Know Your MOT

MOT failure rate and common problems for the Honda St90, and how to check your own car by registration.

Updated 05 September 2026.

21.2%fail rate

Honda St90 MOT failure rate

What a Honda St90 fails its MOT on, and the part that fixes each.

What it fails on, and why

Lamps & electrical18.2% 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.

Visibility/wipers9.1% of failures

Visibility failures include torn or smearing wiper blades, a washer jet that does not reach the screen, and chips or cracks in the driver's swept area. Blades and washer fluid are quick, cheap fixes.

Registration plate9.1% of failures

A missing, damaged, dirty or incorrectly-spaced number plate, or one using the wrong font, will fail. A replacement plate is inexpensive.

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: Honda St90 headlight and indicator bulbsShop Honda St90 headlight and indicator bulbs on AmazonaffiliateFind Honda St90 headlight and indicator bulbs on eBayaffiliate
For the visibility/wipers failure: Honda St90 wiper bladesShop Honda St90 wiper blades on AmazonaffiliateFind Honda St90 wiper blades on eBayaffiliate
For the registration plate failure: Honda St90 number plateShop Honda St90 number plate on AmazonaffiliateFind Honda St90 number plate on eBayaffiliate

Other models

All Honda models MOT failure rates comparedRanked worst to bestHonda Civic MOT failures26.3% failure rateHonda Jazz MOT failures18.9% failure rateFord Fiesta MOT failures27.1% failure rate

Questions and answers

What is the MOT failure rate of the Honda St90?

It fails 21.2% of its MOT tests across the DVSA record, from 52 tests.

What do these cars fail their MOT on most?

The most common failure area is lamps & electrical, at 18.2% of this model's failures.