Chrysler-Jeep 300 MOT pass rate & common failures
23,571 MOT tests on the Chrysler-Jeep 300 (2002–2014) give it a 74.9% pass rate. That is 1.2 percentage points better than all cars of a similar age, which fail at 26.3%. Its most common failure areas are brakes, lighting & signalling and suspension.
What the MOT record shows
One area stands out: brakes, recorded in 16.9% of tests against 10.8% for the next-worst category.
At component level the recurring items are rbt (sp), pins and bushes and position lamp — rbt (sp) alone was recorded 2,612 times.
Condition tracks the odometer closely. Failures run at 15.4% in the 0-30k band and 26.6% in the 150k+ band, a 11.2-point spread.
The petrol cars hold up better: 22.8% fail against 25.4% for diesel, a 2.6-point gap across 23,568 tests.
Brakes is the most common advisory, noted on 34.9% of tests — work that passed today but is likely due soon.
How it compares
By model year
Every 300 model year with a usable sample. Years with their own detailed report are linked.
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 2005 | 519 | 78.0% | 22.0% | Brakes |
| 2006 | 5,649 | 74.9% | 25.1% | Brakes |
| 2007 | 7,628 | 74.9% | 25.1% | Brakes |
| 2008 | 4,494 | 74.4% | 25.6% | Brakes |
| 2009 | 2,499 | 74.1% | 25.9% | Brakes |
| 2010 | 2,390 | 75.6% | 24.4% | Brakes |
| 2012 | 353 | 77.0% | 22.9% | Brakes |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Brakes | 16.9% | 3,983 |
| 2 | Lighting & signalling | 10.8% | 2,556 |
| 3 | Suspension | 10.4% | 2,459 |
| 4 | Steering | 5.7% | 1,334 |
| 5 | Tyres | 3.6% | 848 |
| 6 | Visibility | 3.1% | 721 |
| 7 | Emissions & environmental | 2.7% | 638 |
| 8 | Body, structure & corrosion | 1.5% | 363 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Rbt (sp) | 2,612 |
| 2 | Pins and bushes | 1,889 |
| 3 | Position lamp | 1,393 |
| 4 | Track rod end | 1,356 |
| 5 | Ball joint | 1,277 |
| 6 | Parking brake performance | 1,078 |
| 7 | Service brake performance | 769 |
| 8 | Anti-lock braking system | 762 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Brakes | 34.9% | 8,217 |
| 2 | Suspension | 33.6% | 7,909 |
| 3 | Tyres | 22.9% | 5,394 |
| 4 | Emissions & environmental | 14.2% | 3,348 |
| 5 | Steering | 8.6% | 2,029 |
| 6 | Lighting & signalling | 7.9% | 1,855 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 0-30k | 383 | 15.4% |
| 30-60k | 2,300 | 20.9% |
| 60-90k | 5,297 | 24.5% |
| 90-120k | 6,525 | 25.3% |
| 120-150k | 5,046 | 27.0% |
| 150k+ | 4,003 | 26.6% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 20,583 | 25.4% |
| Petrol | 2,985 | 22.8% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 5,795 | 25.7% |
| 2022 | 5,299 | 24.8% |
| 2023 | 4,787 | 25.1% |
| 2024 | 4,118 | 24.6% |
| 2025 | 3,572 | 25.2% |
What to check before buying a Chrysler-Jeep 300
- Brakes (16.9% of tests): Pads/discs are routine wear; binding, imbalance or corroded pipes are more serious — test for pulling under braking. Typical repair: £100–£350 per axle.
- Lighting & signalling (10.8% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (10.4% of tests): Worn drop links, bushes, springs or shocks — listen for knocks over bumps and check for uneven tyre wear. Typical repair: £150–£450 per corner.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
What is the MOT pass rate for the Chrysler-Jeep 300?
74.9% of the 23,571 Chrysler-Jeep 300 MOT tests in this dataset passed, a 25.1% fail rate, across model years 2002–2014.
What does the Chrysler-Jeep 300 most often fail its MOT on?
Brakes, recorded in 16.9% of tests, then lighting & signalling (10.8%).
How much does mileage affect 300 MOT results?
Fail rates run at 15.4% for cars in the 0-30k band and 26.6% for 150k+, a 11.2-point difference.
Is the petrol or diesel 300 more reliable at MOT time?
On MOT-testable defects the petrol fails 22.8% of the time against 25.4% for the diesel. This covers testable items only, not engine or gearbox reliability.
Methodology & source. Based on 23,571 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-27. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.