MOT failure rate and common problems for the Austin 100/6, and how to check your own car by registration.

Updated 05 September 2026.

11.5%fail rate

Austin 100/6 MOT failure rate

What a Austin 100/6 fails its MOT on, and the part that fixes each.

What it fails on, and why

Brakes66.7% 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.

Exhaust & emissions33.3% 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.

Visibility/wipers33.3% 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.

Other16.7% of failures

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

Suspension16.7% 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.

Lamps & electrical16.7% 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.

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For the exhaust & emissions failure: Austin 100/6 exhaustShop Austin 100/6 exhaust on Amazonaffiliate Find Austin 100/6 exhaust on eBayaffiliate

For the visibility/wipers failure: Austin 100/6 wiper bladesShop Austin 100/6 wiper blades on Amazonaffiliate Find Austin 100/6 wiper blades on eBayaffiliate

For the suspension failure: Austin 100/6 suspension springs and shock absorbersShop Austin 100/6 suspension springs and shock absorbers on Amazonaffiliate Find Austin 100/6 suspension springs and shock absorbers on eBayaffiliate

For the lamps & electrical failure: Austin 100/6 headlight and indicator bulbsShop Austin 100/6 headlight and indicator bulbs on Amazonaffiliate Find Austin 100/6 headlight and indicator bulbs on eBayaffiliate

Other models

All Austin models MOT failure rates comparedRanked worst to best Austin MINI MOT failures32.8% failure rate Austin Metro MOT failures33.4% failure rate Ford Fiesta MOT failures27.1% failure rate

Questions and answers

What is the MOT failure rate of the Austin 100/6?

It fails 11.5% 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 brakes, at 66.7% of this model's failures.