Lambretta 151n MOT Pass Rate
Overall pass rate across all manufacture years, based on 36 real MOT test results. Failure rate: 16.7%.
Data from official DVSA MOT testing records
Lambretta 151n MOT Reliability Overview
The Lambretta 151n is a rare vehicle in the UK, with 36 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 83.3% and a failure rate of 16.7%, which is well above the UK average of approximately 37%.
Based on this data, the Lambretta 151n earns a "Excellent" reliability rating. The average Lambretta 151n presents for MOT with approximately 591 miles on the clock.
The most common MOT failure for the Lambretta 151n is Motorcycle lamps and reflectors, affecting 8.3% of all tests. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. The second most common issue is Motorcycle brakes at 5.6%. Motorcycle body and structure rounds out the top three at 2.8%. Together, these top 3 failure categories account for a significant portion of all MOT failures for this model.
Top failures across all manufacture years combined. Individual year pages may show different top failures.
What Fails Most
* High Fail Rate badge indicates an MOT pass rate below 65% (failure rate above 35%).
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Motorcycle Lamps And Reflectors | 8.3% | 3 |
| 2 | Motorcycle Brakes | 5.6% | 2 |
| 3 | Motorcycle Body And Structure | 2.8% | 1 |
| 4 | Motorcycle Wheels | 2.8% | 1 |
🚗 Similar Cars to Consider
Mileage at MOT
The average Lambretta 151n has 591 miles when tested for MOT.
About Lambretta 151n MOT Data
The Lambretta 151n is a rare vehicle in the UK, with 36 MOT test results recorded in our database spanning 0 manufacture years. It has an overall MOT pass rate of 83.3% and a failure rate of 16.7%, which is well above the UK average of approximately 37%.
For Lambretta 151n owners, these results suggest a reliable vehicle that generally passes its MOT without major issues. Focus your pre-MOT checks on motorcycle lamps and reflectors and motorcycle brakes for the best chance of a first-time pass. Use our detailed year-by-year breakdown and failure analysis below to understand how your specific 151n is likely to perform.
Motorcycle lamps and reflectors — 8.3% of failures
Motorcycle lamps and reflectors issues account for 8.3% of MOT failures on the Lambretta 151n. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.
Motorcycle brakes — 5.6% of failures
Motorcycle brakes issues account for 5.6% of MOT failures on the Lambretta 151n. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Motorcycle body and structure — 2.8% of failures
Motorcycle body and structure issues account for 2.8% of MOT failures on the Lambretta 151n. Body and structure failures include excessive corrosion, sharp edges, loose panels, and damage to the vehicle frame. Rust is the primary concern, especially on older vehicles or those exposed to road salt. Typical repair costs: £100–500+. Pre-MOT check: Inspect sills, wheel arches, door bottoms, and the chassis for rust. Surface rust is acceptable but structural corrosion or holes will fail. Check that all doors, bonnet, and boot close securely.
Frequently Asked Questions
What is the MOT pass rate for the Lambretta 151n?
Based on 36 (based on limited data) MOT tests in our database, the Lambretta 151n has an overall pass rate of 83.3% (16.7% fail rate).
What are the most common MOT failures on a Lambretta 151n?
The top 3 reasons a Lambretta 151n fails its MOT are: 1. Motorcycle lamps and reflectors (8.3%), 2. Motorcycle brakes (5.6%), 3. Motorcycle body and structure (2.8%). Check these areas before booking your MOT.
Is the Lambretta 151n reliable?
With a 16.7% MOT failure rate, the 151n is more reliable than average compared to the UK average of ~40%.
What should I check before an MOT on my Lambretta 151n?
Based on failure data, focus on: Motorcycle lamps and reflectors (8.3%); Motorcycle brakes (5.6%); Motorcycle body and structure (2.8%). These are the areas most likely to cause a fail. Also check all lights, tyres (minimum 1.6mm tread), and windscreen condition — these are quick wins that apply to all cars.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.