MOT failure rate and common problems for the Suzuki M109r, and how to check your own car by registration.

Updated 05 September 2026.

10.9%fail rate

Suzuki M109r MOT failure rate

What a Suzuki M109r fails its MOT on, and the part that fixes each.

What it fails on, and why

Lamps & electrical33.3% 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.

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.

Tyres33.3% 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.

Registration plate16.7% of failures

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

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 lamps & electrical failure: Suzuki M109r headlight and indicator bulbsShop Suzuki M109r headlight and indicator bulbs on Amazonaffiliate Find Suzuki M109r headlight and indicator bulbs on eBayaffiliate

For the exhaust & emissions failure: Suzuki M109r exhaustShop Suzuki M109r exhaust on Amazonaffiliate Find Suzuki M109r exhaust on eBayaffiliate

For the tyres failure: Suzuki M109r tyresShop Suzuki M109r tyres on Amazonaffiliate Find Suzuki M109r tyres on eBayaffiliate

For the registration plate failure: Suzuki M109r number plateShop Suzuki M109r number plate on Amazonaffiliate Find Suzuki M109r number plate on eBayaffiliate

Other models

All Suzuki models MOT failure rates comparedRanked worst to best Suzuki Swift MOT failures23.4% failure rate Suzuki Alto MOT failures25.8% failure rate Ford Fiesta MOT failures27.1% failure rate

Questions and answers

What is the MOT failure rate of the Suzuki M109r?

It fails 10.9% of its MOT tests across the DVSA record, from 55 tests.

What do these cars fail their MOT on most?

The most common failure area is lamps & electrical, at 33.3% of this model's failures.