Lambretta SX 150 Reliability, MOT Pass Rate & Common Faults
Free Lambretta SX 150 car check
Is the Lambretta SX 150 reliable? We analysed 663 real MOT tests across 100 vehicles to find out.
Got a specific Lambretta SX 150? Enter the reg for a free check:
The Lambretta SX 150 is above average for reliability based on real UK MOT data. Common problems include steering headbearing has excessive free play, brake lever has inadequate reserve travel and brake pedal has inadequate reserve travel. Here's everything you need to know before buying a used Lambretta SX 150.
Lambretta SX 150 Number Plates
Number plates registered to a Lambretta SX 150. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Lambretta SX 150 MOT Pass Rate by Year
How likely is a Lambretta SX 150 to pass its MOT? Here's the pass rate for each registration year, newest first.
Lambretta SX 150 Problems — What Goes Wrong?
The most common reasons a Lambretta SX 150 fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Lambretta SX 150 Mileage — What's Normal?
How many miles does a typical Lambretta SX 150 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Lambretta SX 150 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Lambretta SX 150 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2002 | 53 | 83.0% | 1,172 | 3,572 | 4,953 |
| 1968 | 121 | 89.3% | 559 | 2,106 | 17,465 |
| 1967 | 100 | 93.0% | 599 | 1,844 | 17,838 |
Lambretta SX 150 Mileage Distribution
Total mileage recorded across all Lambretta SX 150 MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Lambretta SX 150
Based on MOT pass rates across all registration years with sufficient test data.
93.0% MOT pass rate from 100 tests
83.0% MOT pass rate from 53 tests
The best year to buy a used Lambretta SX 150 is 1967, which has the highest MOT pass rate at 93.0% across 100 tests. The 2002 model year has the lowest pass rate at 83.0% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Lambretta SX 150 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Lambretta SX 150 THIS CAR | 90.8% | 663 | 3,530 mi | 59 yrs |
| Lambretta GP200 | 89.3% | 20,062 | 2,269 mi | 59 yrs |
| Lambretta LI125 | 88.9% | 16,544 | 2,774 mi | 67 yrs |
| Lambretta LI150 | 90% | 14,980 | 3,032 mi | 68 yrs |
| Dennis Dart | 82% | 713 | 105,010 mi | 33 yrs |
Compared to the Lambretta GP200 (89.3% pass rate) and the Lambretta LI125 (88.9% pass rate), the Lambretta SX 150 outperforms both on MOT reliability.
Found a Lambretta SX 150 you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Lambretta SX 150Should you buy a used Lambretta SX 150?
The Lambretta SX 150 has an overall MOT pass rate of 90.8% across 663 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Lambretta SX 150 are steering headbearing has excessive free play (4 recorded failures), brake lever has inadequate reserve travel (3), and brake pedal has inadequate reserve travel (3). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
A typical Lambretta SX 150 owner drives around 187 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Lambretta SX 150 models stay on UK roads for around 59 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.