MOT failure rate and common problems for the Renault Rb44, and how to check your own car by registration.

Updated 05 September 2026.

26.8%fail rate

Renault Rb44 MOT failure rate

What a Renault Rb44 fails its MOT on, and the part that fixes each.

What it fails on, and why

Brakes26.7% 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.

Lamps & electrical26.7% 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.

Registration plate13.3% of failures

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

Suspension13.3% 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.

Tyres13.3% 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.

Visibility/wipers6.7% 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.

For the brakes failure: Renault Rb44 brake pads and discsShop Renault Rb44 brake pads and discs on Amazonaffiliate Find Renault Rb44 brake pads and discs on eBayaffiliate

For the lamps & electrical failure: Renault Rb44 headlight and indicator bulbsShop Renault Rb44 headlight and indicator bulbs on Amazonaffiliate Find Renault Rb44 headlight and indicator bulbs on eBayaffiliate

For the registration plate failure: Renault Rb44 number plateShop Renault Rb44 number plate on Amazonaffiliate Find Renault Rb44 number plate on eBayaffiliate

For the suspension failure: Renault Rb44 suspension springs and shock absorbersShop Renault Rb44 suspension springs and shock absorbers on Amazonaffiliate Find Renault Rb44 suspension springs and shock absorbers on eBayaffiliate

For the tyres failure: Renault Rb44 tyresShop Renault Rb44 tyres on Amazonaffiliate Find Renault Rb44 tyres on eBayaffiliate

For the visibility/wipers failure: Renault Rb44 wiper bladesShop Renault Rb44 wiper blades on Amazonaffiliate Find Renault Rb44 wiper blades on eBayaffiliate

Other models

All Renault models MOT failure rates comparedRanked worst to best Renault Clio MOT failures32.7% failure rate Renault Megane MOT failures32.9% failure rate Ford Fiesta MOT failures27.1% failure rate

Questions and answers

What is the MOT failure rate of the Renault Rb44?

It fails 26.8% of its MOT tests across the DVSA record, from 56 tests.

What do these cars fail their MOT on most?

The most common failure area is brakes, at 26.7% of this model's failures.