1998 BMW 3 Series (first used 1998) MOT pass rate, common failures & what to check
In 2025, 68.4% of BMW 3 Series cars first used in 1998 passed their MOT first time, against 65.6% for all cars first used in 1998. Across 6,410 3 Series first tests from 2023 to 2025, the most common failure areas were lamps and electrical equipment, suspension and brakes.
This page analyses first MOT tests for BMW 3 Series cars first used in 1998 (all trims grouped): 2021 to 2025 for the pass-rate trend, and 2023 to 2025 for the failure and advisory analysis — plus what is worth checking before you buy one.
Data: DVSA anonymised MOT tests to December 2025 · Calculated by SortedCars · Updated October 2026
How the 1998 BMW 3 Series MOT pass rate has changed
Share of first tests passed in each year, 3 Series cars first used in 1998 against all cars first used in 1998 (any make or fuel; not adjusted for mileage, fuel or use). In 2025 the 3 Series figure was in line with the all-cars figure.
View this chart as a table
| Test year | 1998 3 Series | All cars first used 1998 | 3 Series first tests |
|---|---|---|---|
| 2021 | 63.6% | 60.7% | 2,935 |
| 2022 | 67.1% | 62.4% | 2,683 |
| 2023 | 67.7% | 64.0% | 2,410 |
| 2024 | 67.8% | 64.9% | 2,105 |
| 2025 | 68.4% | 65.6% | 1,895 |
Common 1998 BMW 3 Series MOT failures
Share of the 2,054 failed first tests (2023–2025) with at least one failure in each area. A test can fail in more than one area, so the shares add up to more than 100%.
Most common failure items
| DVSA failure item | Share of failed first tests | Tests |
|---|---|---|
| Ball joint: excessively worn | 10.2% | 209 |
| Stop lamp: not working | 9.0% | 184 |
| Position lamp: not working | 8.7% | 178 |
| Catalyst emissions: carbon monoxide content after 2nd fast idle exceeds manufacturer's specified limits | 8.6% | 177 |
| Catalyst emissions: Lambda reading after 2nd fast idle outside specified limits | 8.1% | 167 |
Item names are DVSA’s own wording. 2023–2025 combined.
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Typical repair costs for common MOT failures
Typical UK garage prices for the job, not for a 3 Series in particular, and not a quote.
| Failure item | Typical job | Typical UK price | Usual range |
|---|---|---|---|
| Ball joint: excessively worn | Ball joint replacement | £90 | £60–£150 |
From published UK repair-cost guides, checked September 2026. Only jobs with a published typical price are shown.
What to check on a 1998 BMW 3 Series before buying
The three areas where failed first tests most often had a fault, 2023–2025.
- Lamps and electrics. Ask someone to watch while you work the brake lights, indicators, sidelights, dipped and main beam, and the number-plate lamps.
- Suspension. Worth looking behind the front wheels with a torch at the coil springs, and listening for knocks over bumps on the test drive.
- Brakes. Worth looking at the discs and pads through the wheel spokes for scoring and a worn lip, and noticing on the test drive whether the car pulls to one side or the pedal feels long.
Common 1998 BMW 3 Series MOT advisories
Advisories are points the tester noted that did not fail the car. Most common on 1998 3 Series cars, as a share of all 6,410 first tests, 2023–2025.
| DVSA advisory item | Share of first tests | Tests |
|---|---|---|
| Rigid brake pipes: corroded, covered in grease or other material | 16.9% | 1,086 |
| Engine oil leaks: leak, but not excessive | 15.7% | 1,004 |
| Tread depth: worn close to legal limit/worn on edge | 10.9% | 701 |
| Brake discs: worn, pitted or scored, but not seriously weakened | 7.3% | 469 |
| Suspension arm pins and bushes: pin or bush worn but not resulting in excessive movement | 6.8% | 435 |
Questions about the 1998 BMW 3 Series MOT
What is the MOT pass rate of a 1998 BMW 3 Series?
In 2025, 68.4% of 3 Series cars first used in 1998 passed their MOT first time, against 65.6% for all cars first used in 1998. A car fixed during the test counts as a fail.
What does a 1998 3 Series most often fail its MOT on?
Lamps and electrical equipment (in 45.9% of failed first tests, 2023–2025), suspension (36.2%) and brakes (31.6%). The single most common item was “Ball joint: excessively worn” (10.2%).
How often does a 1998 BMW 3 Series fail its MOT?
In 2025, 31.6% of first tests on 3 Series cars first used in 1998 did not pass first time: 24.4% failed, and a further 7.2% had a fault fixed during the test (counted as a fail here). Across 2023–2025, 2,054 of 6,410 first tests did not pass first time.
What are the most common 1998 BMW 3 Series MOT advisories?
“Rigid brake pipes: corroded, covered in grease or other material” (on 16.9% of first tests, 2023–2025), “Engine oil leaks: leak, but not excessive” (15.7%), “Tread depth: worn close to legal limit/worn on edge” (10.9%), “Brake discs: worn, pitted or scored, but not seriously weakened” (7.3%) and “Suspension arm pins and bushes: pin or bush worn but not resulting in excessive movement” (6.8%).
Is a 1998 BMW 3 Series reliable?
An MOT pass rate shows what failed at the test, not how reliable a car is. For this group of cars the first-time pass rate went from 63.6% in 2021 to 68.4% in 2025. For one particular car, its own MOT history matters more than the average.
Other cars first used in 1998
The most-tested cars from the same year. Each page uses the same method.
1998 Volkswagen Transporter MOT statistics · 1998 Land Rover Defender MOT statistics · 1998 Mazda MX-5 MOT statistics · 1998 BMW Z3 MOT statistics · 1998 Nissan Micra MOT statistics
Checking a specific 1998 3 Series?
The numbers above cover every 3 Series first used in 1998 and tested in Great Britain. Our free check shows the actual MOT history, mileage record and tax status of the one you are looking at.
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