2004 Bmw X3 — MOT failures & pass rate
Across 16,570 MOT tests analysed for the 2004 Bmw X3, the most common recorded failure areas were suspension, lighting & signalling and brakes. Its pass rate of 76.4% was above the average for mid-size SUVs of a similar age (71.9%). Higher-mileage examples failed more often — 26.5% in the 150k+ group versus 8.1% in the 0-30k group.
How it compares
Top failure categories
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Suspension | 11.1% | 1,831 |
| 2 | Lighting & signalling | 10.9% | 1,810 |
| 3 | Brakes | 7.9% | 1,305 |
| 4 | Emissions & environmental | 6.7% | 1,111 |
| 5 | Visibility | 5.8% | 968 |
| 6 | Tyres | 4.9% | 816 |
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 | 911 |
| 2 | Malfunction indicator lamp | 806 |
| 3 | Linkage ball joint dust cover | 721 |
| 4 | Washers | 618 |
| 5 | Tread depth | 596 |
| 6 | Coil spring | 541 |
Top advisory categories
Advisories aren't failures, but they flag work likely needed soon — useful when budgeting.
| # | Category | % of tests with advisory | Tests |
|---|---|---|---|
| 1 | Emissions & environmental | 34.9% | 5,785 |
| 2 | Tyres | 27.5% | 4,548 |
| 3 | Suspension | 26.1% | 4,332 |
| 4 | Brakes | 21.3% | 3,524 |
| 5 | Lighting & signalling | 14.2% | 2,346 |
| 6 | Other defects | 13.3% | 2,208 |
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 | 37 | 8.1% |
| 30-60k | 387 | 15.8% |
| 60-90k | 2,325 | 19.1% |
| 90-120k | 5,596 | 23.0% |
| 120-150k | 5,115 | 25.1% |
| 150k+ | 3,077 | 26.5% |
Failure rate by age
By fuel type
| Fuel | Tests | Fail rate |
|---|---|---|
| Petrol | 14,445 | 23.2% |
| Diesel | 2,111 | 26.3% |
Trend over time
| Dataset year | Tests | Fail rate |
|---|---|---|
| 2021 | 4,508 | 23.8% |
| 2022 | 3,967 | 23.6% |
| 2023 | 3,353 | 24.2% |
| 2024 | 2,627 | 22.9% |
| 2025 | 2,115 | 22.6% |
What to check before buying a 2004 X3
Before buying a 2004 Bmw X3, focus on the areas it most often fails on. Suspension accounted for 11.1% of tests for this year.
- Suspension (11.1% 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 (10.9% of tests): Often a cheap bulb, but persistent issues can mean wiring or corrosion in the units. Typical repair: £10–£150.
- Brakes (7.9% 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 2004 Bmw X3s pass their MOT?
76.4% of the 16,570 2004 Bmw X3 MOT tests in this dataset passed — a 23.5% fail rate.
What is the most common MOT failure on a 2004 Bmw X3?
Suspension, recorded in 11.1% of tests, followed by lighting & signalling (10.9%).
Does the 2004 X3 get worse with mileage?
Its MOT fail rate rises from 8.1% in the 0-30k band to 26.5% in the 150k+ band.
Methodology & source. Based on 16,570 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.