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

Updated 05 September 2026.

32.9%fail rate

Toyota Four MOT failure rate

What a Toyota Four fails its MOT on, and the part that fixes each.

What it fails on, and why

Lamps & electrical53.8% 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.

Brakes34.6% 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.

Suspension30.8% of failures

Suspension failures usually mean a worn or snapped coil spring, a leaking shock absorber, or play in a lower arm ball joint or bush. The tester checks for corrosion, fractures and excessive movement. A broken front spring is one of the most common failures on higher-mileage cars and is a straightforward replacement.

Exhaust & emissions26.9% of failures

Exhaust failures cover leaks, insecure mountings and emissions over the limit. A blowing exhaust, a failed lambda reading or a diesel that smokes beyond the limit will fail.

Other15.4% of failures

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

Visibility/wipers15.4% 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.

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.

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For the visibility/wipers failure: Toyota Four wiper bladesShop Toyota Four wiper blades on Amazonaffiliate Find Toyota Four wiper blades on eBayaffiliate

Other models

All Toyota models MOT failure rates comparedRanked worst to best Toyota Yaris MOT failures22.0% failure rate Toyota Corolla MOT failures23.9% failure rate Ford Fiesta MOT failures27.1% failure rate

Questions and answers

What is the MOT failure rate of the Toyota Four?

It fails 32.9% of its MOT tests across the DVSA record, from 79 tests.

What do these cars fail their MOT on most?

The most common failure area is lamps & electrical, at 53.8% of this model's failures.