Know Your MOT

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

Updated 05 September 2026.

8.5%fail rate

Grinall Scorpion MOT failure rate

What a Grinall Scorpion fails its MOT on, and the part that fixes each.

What it fails on, and why

Steering40.0% 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.

Registration plate20.0% of failures

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

Lamps & electrical20.0% 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.

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 steering failure: Grinall Scorpion steering track rod endsShop Grinall Scorpion steering track rod ends on AmazonaffiliateFind Grinall Scorpion steering track rod ends on eBayaffiliate
For the registration plate failure: Grinall Scorpion number plateShop Grinall Scorpion number plate on AmazonaffiliateFind Grinall Scorpion number plate on eBayaffiliate
For the lamps & electrical failure: Grinall Scorpion headlight and indicator bulbsShop Grinall Scorpion headlight and indicator bulbs on AmazonaffiliateFind Grinall Scorpion headlight and indicator bulbs on eBayaffiliate

Other models

Ford Fiesta MOT failures27.1% failure rateFord Focus MOT failures26.1% failure rateVauxhall Corsa MOT failures29.9% failure rateVauxhall Astra MOT failures28.0% failure rate

Questions and answers

What is the MOT failure rate of the Grinall Scorpion?

It fails 8.5% of its MOT tests across the DVSA record, from 59 tests.

What do these cars fail their MOT on most?

The most common failure area is steering, at 40.0% of this model's failures.