2005 BMW 5 Series — MOT failures & pass rate
The 2005 BMW 5 Series passed 77.6% of its 35,030 recorded MOT tests. That is 1.7 percentage points better than executive cars of a similar age, which fail at 24.1%. Failures cluster in lighting & signalling, suspension and brakes.
What the MOT record shows
No single area dominates — lighting & signalling (10.9%) and suspension (10.8%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are headlamp aim, headlamp and srs malfunction indicator lamp — headlamp aim alone was recorded 2,178 times.
Condition tracks the odometer closely. Failures run at 14.6% in the 0-30k band and 23.0% in the 150k+ band, a 8.5-point spread.
Fuel type barely separates them — petrol fails 21.4% of the time against 22.7% for diesel.
Brakes is the most common advisory, noted on 35.0% of tests — work that passed today but is likely due soon.
The trend is improving — the fail rate fell from 22.9% in 2021 to 21.1% in 2025, as the worst-kept examples leave the fleet.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 10.9% | 3,836 |
| 2 | Suspension | 10.8% | 3,784 |
| 3 | Brakes | 9.3% | 3,240 |
| 4 | Tyres | 6.3% | 2,220 |
| 5 | Seat belts & restraints | 5.3% | 1,839 |
| 6 | Steering | 3.8% | 1,322 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Headlamp aim | 2,178 |
| 2 | Headlamp | 1,759 |
| 3 | SRS malfunction indicator lamp | 1,643 |
| 4 | Pins and bushes | 1,574 |
| 5 | Tread depth | 1,539 |
| 6 | Rigid brake pipes | 1,455 |
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 | 35.0% | 12,258 |
| 2 | Suspension | 31.8% | 11,147 |
| 3 | Tyres | 27.7% | 9,702 |
| 4 | Emissions & environmental | 17.4% | 6,096 |
| 5 | Lighting & signalling | 16.8% | 5,884 |
| 6 | Other defects | 12.2% | 4,264 |
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 | 96 | 14.6% |
| 30-60k | 422 | 13.3% |
| 60-90k | 1,873 | 19.1% |
| 90-120k | 5,320 | 21.3% |
| 120-150k | 8,578 | 23.0% |
| 150k+ | 18,717 | 23.0% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Diesel | 27,868 | 22.7% |
| Petrol | 7,162 | 21.4% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 9,424 | 22.9% |
| 2022 | 8,386 | 22.8% |
| 2023 | 7,043 | 22.7% |
| 2024 | 5,669 | 21.8% |
| 2025 | 4,508 | 21.1% |
What to check before buying a 2005 5 Series
The failure pattern for this year is specific enough to inspect against: lighting & signalling accounted for 10.9% of tests. Start there.
- Lighting & signalling (10.9% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (10.8% 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.
- Brakes (9.3% 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 2005 BMW 5 Seriess pass their MOT?
77.6% of the 35,030 2005 BMW 5 Series MOT tests in this dataset passed — a 22.4% fail rate.
What is the most common MOT failure on a 2005 BMW 5 Series?
Lighting & signalling, recorded in 10.9% of tests, followed by suspension (10.8%).
Does the 2005 5 Series get worse with mileage?
Its MOT fail rate rises from 14.6% in the 0-30k band to 23.0% in the 150k+ band.
Methodology & source. Based on 35,030 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.