Proton Common MOT Problems (2026)
Proton models ranked by MOT fail rate, with typical issues to check for cars of each age and type. Based on 2,975 MOT tests (DVSA data for tests carried out in 2024, retests included).
Average Proton MOT pass rate: 70%
Check Your Proton's MOT History
See the specific issues found on your car, plus health score and running cost estimates.
70%
Avg pass rate
30%
Avg fail rate
4
Models tested
Proton Models with the Most MOT Problems
Highest average fail rates (models with 1,000+ tests, cars registered up to 2021)
| # | Model | Fail Rate | Typical Issues (estimate) | |
|---|---|---|---|---|
| 1 | Proton Savvy | 34% | Suspension wear, Structural corrosion, Exhaust deterioration |
Most Reliable Proton Models
Lowest average fail rates (models with 1,000+ tests, cars registered up to 2021). Newer models tend to pass more often simply because they are younger.
| # | Model | Pass Rate | |
|---|---|---|---|
| 1 | Proton Savvy | 65% |
All Proton Models by Fail Rate
Every Proton model and year with 300+ MOT tests (cars registered up to 2021), sorted by fail rate (highest first). Fuel type is shown as a guide.
| Model | Year | Pass Rate | Fail Rate | |
|---|---|---|---|---|
| Jumbuck | 2006 | 69% | 30% |
Proton MOT FAQ
What are the most common MOT problems on Proton cars?
The most common MOT problems on Proton cars vary by model and age, but typically include lighting defects, suspension wear, brake wear and tyre condition, which are the most common reasons for failure across all makes in DVSA's published MOT statistics. Of the Proton models with at least 1,000 tests, the Proton Savvy has the highest average fail rate at 34%.
Which Proton model is the most reliable?
In our data, the Proton Savvy has the best MOT record of the Proton models with at least 1,000 tests: 65% of its 1,056 MOT tests ended in a pass and 34% in a fail. Newer models tend to pass more often simply because they are younger, so compare models of a similar age.
What is the average MOT pass rate for Proton?
The average MOT pass rate for Proton is 70%, based on 2,975 MOT tests across 4 models (DVSA MOT data for tests in 2024, retests included). That means roughly 30% of MOT tests on Proton cars ended in a fail.
Proton Model Problem Guides
Typical issues to check, rough repair costs and year-by-year MOT pass rates for each Proton model
Check a Specific Proton
Enter any reg plate to see the individual MOT history, defects found, health score, and running cost estimate for that specific car.