2011 Chrysler Delta — MOT failures & pass rate
The 2011 Chrysler Delta passed 73.0% of its 960 recorded MOT tests. That is 4.1 percentage points worse than all cars of a similar age, which fail at 22.9%. Failures cluster in suspension, lighting & signalling and brakes.
What the MOT record shows
One area stands out: suspension, recorded in 15.8% of tests against 11.3% for the next-worst category.
At component level the recurring items are coil spring, headlamp and pins and bushes — coil spring alone was recorded 120 times.
Condition tracks the odometer closely. Failures run at 16.1% in the 30-60k band and 31.8% in the 120-150k band, a 15.7-point spread.
Tyres is the most common advisory, noted on 30.5% of tests — work that passed today but is likely due soon.
The trend is worsening — 23.5% of tests failed in 2021 against 27.9% in 2025, the usual pattern as a fleet ages.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Suspension | 15.8% | 152 |
| 2 | Lighting & signalling | 11.3% | 109 |
| 3 | Brakes | 7.7% | 74 |
| 4 | Tyres | 5.7% | 55 |
| 5 | Visibility | 4.0% | 38 |
| 6 | Emissions & environmental | 3.6% | 35 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Coil spring | 120 |
| 2 | Headlamp | 49 |
| 3 | Pins and bushes | 48 |
| 4 | Headlamp aim | 38 |
| 5 | Ball joint | 36 |
| 6 | Brake pads | 29 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Tyres | 30.5% | 293 |
| 2 | Brakes | 28.6% | 275 |
| 3 | Suspension | 28.5% | 274 |
| 4 | Other defects | 12.9% | 124 |
| 5 | Emissions & environmental | 10.6% | 102 |
| 6 | Body, structure & corrosion | 7.9% | 76 |
Failure rate by mileage
Higher-mileage cars tend to fail more — often the most useful guide to real condition.
| Mileage band | Tests | Fail rate |
|---|---|---|
| 30-60k | 118 | 16.1% |
| 60-90k | 331 | 28.1% |
| 90-120k | 357 | 27.5% |
| 120-150k | 129 | 31.8% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 653 | 27.4% |
| Petrol | 307 | 26.1% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 221 | 23.5% |
| 2022 | 221 | 26.7% |
| 2023 | 207 | 27.1% |
| 2024 | 175 | 30.9% |
| 2025 | 136 | 27.9% |
What to check before buying a 2011 Delta
The failure pattern for this year is specific enough to inspect against: suspension accounted for 15.8% of tests. Start there.
- Suspension (15.8% 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.
- Lighting & signalling (11.3% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (7.7% 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.
Repair costs are rough UK ballpark ranges to set expectations, not quotes — actual prices vary widely by car, parts and garage.
Frequently asked questions
How many 2011 Chrysler Deltas pass their MOT?
73.0% of the 960 2011 Chrysler Delta MOT tests in this dataset passed — a 27.0% fail rate.
What is the most common MOT failure on a 2011 Chrysler Delta?
Suspension, recorded in 15.8% of tests, followed by lighting & signalling (11.3%).
Does the 2011 Delta get worse with mileage?
Its MOT fail rate rises from 16.1% in the 30-60k band to 31.8% in the 120-150k band.
Methodology & source. Based on 960 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.