2005 Bmw 1 Series — MOT failures & pass rate
Across 48,562 MOT tests analysed for the 2005 Bmw 1 Series, the most common recorded failure areas were lighting & signalling, brakes and suspension. Its pass rate of 76.0% was above the average for small family cars of a similar age (72.1%). Higher-mileage examples failed more often — 26.8% in the 150k+ group versus 7.9% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 12.7% | 6,162 |
| 2 | Brakes | 11.8% | 5,725 |
| 3 | Suspension | 9.4% | 4,572 |
| 4 | Visibility | 6.8% | 3,294 |
| 5 | Tyres | 6.3% | 3,061 |
| 6 | Seat belts & restraints | 4.3% | 2,079 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Flexible brake hoses | 3,524 |
| 2 | Headlamp aim | 2,999 |
| 3 | Shock absorbers | 2,576 |
| 4 | Individual direction indicators | 2,519 |
| 5 | Tread depth | 2,401 |
| 6 | Washers | 2,273 |
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 | 43.9% | 21,332 |
| 2 | Suspension | 32.7% | 15,880 |
| 3 | Tyres | 30.1% | 14,642 |
| 4 | Lighting & signalling | 17.4% | 8,474 |
| 5 | Emissions & environmental | 17.0% | 8,277 |
| 6 | Other defects | 11.6% | 5,623 |
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 | 266 | 7.9% |
| 30-60k | 1,769 | 12.3% |
| 60-90k | 6,280 | 19.1% |
| 90-120k | 12,520 | 23.7% |
| 120-150k | 13,231 | 25.4% |
| 150k+ | 14,466 | 26.8% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 29,166 | 24.9% |
| Petrol | 19,388 | 22.6% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 14,297 | 23.9% |
| 2022 | 11,869 | 24.2% |
| 2023 | 9,527 | 23.5% |
| 2024 | 7,356 | 24.4% |
| 2025 | 5,513 | 24.0% |
What to check before buying a 2005 1 Series
Before buying a 2005 Bmw 1 Series, focus on the areas it most often fails on. Lighting & signalling accounted for 12.7% of tests for this year.
- Lighting & signalling (12.7% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (11.8% 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.
- Suspension (9.4% 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
How many 2005 Bmw 1 Seriess pass their MOT?
76.0% of the 48,562 2005 Bmw 1 Series MOT tests in this dataset passed — a 24.0% fail rate.
What is the most common MOT failure on a 2005 Bmw 1 Series?
Lighting & signalling, recorded in 12.7% of tests, followed by brakes (11.8%).
Does the 2005 1 Series get worse with mileage?
Its MOT fail rate rises from 7.9% in the 0-30k band to 26.8% in the 150k+ band.
Methodology & source. Based on 48,562 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.