Know Your MOT

MOT failure rate and common problems for the Lambretta 151n, and how to check your own car by registration.

Updated 05 September 2026.

14.3%fail rate

Lambretta 151n MOT failure rate

What a Lambretta 151n fails its MOT on, and the part that fixes each.

What it fails on, and why

Lamps & electrical25.0% 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.

Brakes12.5% 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 lamps & electrical failure: Lambretta 151n headlight and indicator bulbsShop Lambretta 151n headlight and indicator bulbs on AmazonaffiliateFind Lambretta 151n headlight and indicator bulbs on eBayaffiliate
For the brakes failure: Lambretta 151n brake pads and discsShop Lambretta 151n brake pads and discs on AmazonaffiliateFind Lambretta 151n brake pads and discs on eBayaffiliate

Other models

All Lambretta models MOT failure rates comparedRanked worst to bestLambretta Li MOT failures10.7% failure rateLambretta Gp200 MOT failures10.7% failure rateFord Fiesta MOT failures27.1% failure rate

Questions and answers

What is the MOT failure rate of the Lambretta 151n?

It fails 14.3% 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 lamps & electrical, at 25.0% of this model's failures.