Know Your MOT

MOT failure rate and common problems for the BMW I3s, and how to check your own car by registration.

Updated 05 September 2026.

5.0%fail rate

BMW I3s MOT failure rate

What a BMW I3s fails its MOT on, and the part that fixes each.

What it fails on, and why

Tyres20.0% of failures

Tyres fail for tread below the 1.6mm legal limit across the central three-quarters, uneven or exposed-cord wear, or sidewall damage. The tester inspects all four; a single illegal tyre is a fail.

Brakes20.0% 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.

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 tyres failure: BMW I3s tyresShop BMW I3s tyres on AmazonaffiliateFind BMW I3s tyres on eBayaffiliate
For the brakes failure: BMW I3s brake pads and discsShop BMW I3s brake pads and discs on AmazonaffiliateFind BMW I3s brake pads and discs on eBayaffiliate

Other models

All BMW models MOT failure rates comparedRanked worst to bestBMW 3 Series MOT failures24.9% failure rateBMW 118 Series MOT failures18.5% failure rateFord Fiesta MOT failures27.1% failure rate

Questions and answers

What is the MOT failure rate of the BMW I3s?

It fails 5.0% of its MOT tests across the DVSA record, from 101 tests.

What do these cars fail their MOT on most?

The most common failure area is tyres, at 20.0% of this model's failures.