Proton Common MOT Problems (2026)
Every Proton model ranked by MOT fail rate, with the most common issues identified for each. Based on 2,975 real MOT tests.
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 across all tested years
| # | Model | Fail Rate | Common Issues | |
|---|---|---|---|---|
| 1 | Proton Savvy | 34% | Suspension wear, Structural corrosion, Exhaust deterioration | |
| 2 | Proton Gen-2 | 33% | Suspension wear, Structural corrosion, Exhaust deterioration | |
| 3 | Proton Jumbuck | 28% | Suspension wear, Structural corrosion, Exhaust deterioration | |
| 4 | Proton Compact | 7% | Suspension wear, Brake disc corrosion, Structural corrosion |
Most Reliable Proton Models
Lowest average fail rates; the Proton models least likely to have MOT problems
| # | Model | Pass Rate | |
|---|---|---|---|
| 1 | Proton Compact | 93% | |
| 2 | Proton Jumbuck | 71% | |
| 3 | Proton Gen-2 | 67% | |
| 4 | Proton Savvy | 65% |
All Proton Models by Fail Rate
Every Proton model and year combination, sorted by fail rate (highest first)
| Model | Year | Pass Rate | Fail Rate | |
|---|---|---|---|---|
| Savvy | 2006 | 59% | 38% | |
| Gen-2 | 2007 | 62% | 37% | |
| Gen-2 | 2011 | 65% | 35% | |
| Gen-2 | 2006 | 65% | 35% | |
| Savvy | 2010 | 66% | 34% | |
| Savvy | 2009 | 65% | 34% | |
| Gen-2 | 2009 | 66% | 34% | |
| Savvy | 2011 | 63% | 34% | |
| Gen-2 | 2005 | 66% | 34% | |
| Gen-2 | 2008 | 67% | 33% | |
| Savvy | 2008 | 67% | 33% | |
| Savvy | 2007 | 66% | 32% | |
| Jumbuck | 2006 | 69% | 30% | |
| Jumbuck | 2004 | 68% | 30% | |
| Savvy | 2012 | 70% | 30% | |
| Jumbuck | 2003 | 71% | 27% | |
| Gen-2 | 2010 | 76% | 24% | |
| Jumbuck | 2005 | 76% | 23% | |
| Compact | 1999 | 93% | 7% |
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 component deterioration, and tyre condition issues. Older Proton diesels are more prone to exhaust and emissions failures. The Savvy has the highest average fail rate at 34%.
Which Proton model is the most reliable?
The most reliable Proton model in our data is the Compact with an average MOT pass rate of 93%. View all Proton models for full reliability data.
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. This means about 30% of Proton cars fail their MOT on the first attempt.
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.