BMW 3 MOT pass rate & common failures
The BMW 3 appears in 919 MOT tests spanning model years 1987–2020, and 81.2% of them passed. All cars of a similar age fail 22.3% of the time, so this is 3.5pp better than the group it competes with. Its most common failure areas are tyres, suspension and lighting & signalling.
What the MOT record shows
No single area dominates — tyres (6.9%) and suspension (6.3%) are close, so failures are spread across several systems rather than one weak point.
At component level the recurring items are shock absorbers, tread depth and pins and bushes — shock absorbers alone was recorded 35 times.
Mileage is the strongest signal on the record: 13.2% of 30-60k cars fail, rising to 21.4% once past 150k.
Advisories point at the next bill rather than this one: brakes was flagged on 26.3% of tests without failing them.
The trend is improving — the fail rate fell from 21.2% in 2021 to 16.1% in 2025, as the worst-kept examples leave the fleet.
How it compares
By model year
Every 3 model year with a usable sample. Years with their own detailed report are linked.
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 2002 | 34 | 76.5% | 23.5% | Suspension |
| 2007 | 82 | 75.6% | 24.4% | Brakes |
| 2008 | 54 | 77.8% | 22.2% | Brakes |
| 2009 | 52 | 78.8% | 21.1% | Suspension |
| 2010 | 58 | 70.7% | 29.3% | Tyres |
| 2011 | 54 | 75.9% | 24.1% | Brakes |
| 2012 | 63 | 77.8% | 22.2% | Suspension |
| 2013 | 71 | 85.9% | 14.1% | Tyres |
| 2014 | 278 | 86.3% | 13.7% | Tyres |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Tyres | 6.9% | 63 |
| 2 | Suspension | 6.3% | 58 |
| 3 | Lighting & signalling | 6.2% | 57 |
| 4 | Brakes | 5.5% | 51 |
| 5 | Emissions & environmental | 2.8% | 26 |
| 6 | Visibility | 2.2% | 20 |
| 7 | Seat belts & restraints | 1.2% | 11 |
| 8 | Road wheels | 1.1% | 10 |
Most common specific failures
The exact components most often recorded as failures — more specific than the categories above.
| # | Failure item | Times recorded |
|---|---|---|
| 1 | Shock absorbers | 35 |
| 2 | Tread depth | 29 |
| 3 | Pins and bushes | 26 |
| 4 | Headlamp aim | 26 |
| 5 | Ball joint | 16 |
| 6 | Brake pads | 15 |
| 7 | Washers | 15 |
| 8 | Malfunction indicator lamp | 15 |
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 | 26.3% | 242 |
| 2 | Tyres | 24.8% | 228 |
| 3 | Suspension | 17.5% | 161 |
| 4 | Emissions & environmental | 9.9% | 91 |
| 5 | Other defects | 8.6% | 79 |
| 6 | Visibility | 6.1% | 56 |
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 | 167 | 13.2% |
| 60-90k | 279 | 15.8% |
| 90-120k | 211 | 20.8% |
| 120-150k | 142 | 28.2% |
| 150k+ | 103 | 21.4% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Hybrid | 356 | 13.2% |
| Diesel | 303 | 24.4% |
| Petrol | 260 | 20.0% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 203 | 21.2% |
| 2022 | 197 | 17.8% |
| 2023 | 197 | 20.8% |
| 2024 | 173 | 17.3% |
| 2025 | 149 | 16.1% |
What to check before buying a BMW 3
- Tyres (6.9% of tests): Usually a quick, known-cost fix, but check tread, age and uneven wear (which can hint at alignment or suspension issues). Typical repair: £50–£120 per tyre.
- Suspension (6.3% 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 (6.2% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
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 BMW 3?
81.2% of the 919 BMW 3 MOT tests in this dataset passed, an 18.8% fail rate, across model years 1987–2020.
What does the BMW 3 most often fail its MOT on?
Tyres, recorded in 6.9% of tests, then suspension (6.3%).
How much does mileage affect 3 MOT results?
Fail rates run at 13.2% for cars in the 30-60k band and 21.4% for 150k+, a 8.2-point difference.
Methodology & source. Based on 919 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.