BMW 528i — MOT pass rate & failures
The BMW 528i passed 80.6% of its 12,279 MOT tests, covering model years 1980–2023. That is 3.6 percentage points worse than the 15.7% fail rate across all BMW 5 Series versions, so the 528i is a weaker pick within the range. Failures concentrate in lighting & signalling, suspension and brakes.
What the MOT record shows
At component level the recurring items are headlamp aim, washers and rbt (sp) — headlamp aim alone was recorded 555 times.
Condition tracks the odometer closely. Failures run at 8.6% in the 0-30k band and 28.9% in the 150k+ band, a 20.3-point spread — more than double.
Advisories point at the next bill rather than this one: brakes was flagged on 23.7% of tests without failing them.
The trend is improving — the fail rate fell from 21.0% in 2021 to 16.9% in 2025, as the worst-kept examples leave the fleet.
How it compares
By model year
| Year | Tests | Pass rate | Fail rate |
|---|---|---|---|
| 1983 | 44 | 84.1% | 15.9% |
| 1985 | 44 | 86.4% | 13.6% |
| 1986 | 85 | 81.2% | 18.8% |
| 1987 | 123 | 84.5% | 15.4% |
| 1996 | 409 | 70.9% | 29.1% |
| 1997 | 717 | 74.3% | 25.7% |
| 1998 | 1,471 | 73.0% | 27.0% |
| 1999 | 1,707 | 72.8% | 27.2% |
| 2000 | 1,477 | 73.4% | 26.6% |
| 2001 | 77 | 71.4% | 28.6% |
| 2010 | 933 | 83.6% | 16.4% |
| 2011 | 900 | 85.7% | 14.3% |
| 2012 | 359 | 89.7% | 10.3% |
| 2013 | 580 | 84.7% | 15.3% |
| 2014 | 855 | 90.3% | 9.7% |
| 2015 | 1,369 | 90.1% | 9.9% |
| 2016 | 861 | 90.7% | 9.3% |
| 2017 | 169 | 82.8% | 17.2% |
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 7.9% | 972 |
| 2 | Suspension | 7.6% | 932 |
| 3 | Brakes | 6.7% | 818 |
| 4 | Visibility | 4.9% | 597 |
| 5 | Tyres | 4.5% | 547 |
| 6 | Seat belts & restraints | 2.9% | 350 |
| 7 | Steering | 2.4% | 299 |
| 8 | Emissions & environmental | 2.4% | 292 |
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 | 555 |
| 2 | Washers | 430 |
| 3 | Rbt (sp) | 350 |
| 4 | Coil spring | 288 |
| 5 | Headlamp | 288 |
| 6 | Tread depth | 260 |
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 | 23.7% | 2,907 |
| 2 | Tyres | 21.5% | 2,638 |
| 3 | Suspension | 19.2% | 2,361 |
| 4 | Emissions & environmental | 14.3% | 1,752 |
| 5 | Other defects | 11.5% | 1,408 |
| 6 | Lighting & signalling | 7.1% | 875 |
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 | 650 | 8.6% |
| 30-60k | 2,421 | 11.6% |
| 60-90k | 2,674 | 15.8% |
| 90-120k | 2,336 | 20.2% |
| 120-150k | 1,789 | 25.3% |
| 150k+ | 2,271 | 28.9% |
Failure rate by age
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 2,891 | 21.0% |
| 2022 | 2,623 | 19.9% |
| 2023 | 2,413 | 20.1% |
| 2024 | 2,238 | 18.1% |
| 2025 | 2,114 | 16.9% |
What to check before buying a BMW 528i
Focus on the areas it most often fails on — and remember MOT data covers testable defects only, not engine or gearbox health.
- Lighting & signalling (7.9% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Suspension (7.6% 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 (6.7% 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 reliable is the BMW 528i at MOT time?
80.6% of the 12,279 BMW 528i MOT tests in this dataset passed — a 19.4% fail rate, worse than the 15.7% average across all 5 Series versions.
What is the most common MOT failure on a BMW 528i?
Lighting & signalling, recorded in 7.9% of tests, followed by suspension (7.6%).
Does the 528i get worse with mileage?
Its MOT fail rate rises from 8.6% in the 0-30k band to 28.9% in the 150k+ band.
Methodology & source. Based on 12,279 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.