Used car guide

1990 BMW 3 Series: common problems and what to check

What gets flagged at MOT on 1990 BMW 3 Seriess, from 1,072 tests in 2025, plus known faults and what to look at before you buy one.

1,072MOT tests in 2025
80%pass first time (all 1990 cars: 73%)
3,400typical miles a year
3.8×the usual rate for corroded fuel pipes

What stands out

Parts flagged at MOT more often on 1990 BMW 3 Seriess than on all cars registered in 1990.

  • Corroded fuel pipes3.8× usual
    BMW 3 Series
    4.9% All 1990 cars
    1.3%

    Failed outright at MOT: 0%, against 0% of all 1990 cars. The rest were advisories or minor defects.

    Rough price £100–£400 our estimate

    At the viewing: Ask to see underneath, or check the MOT advisories: corroded brake or fuel pipes get worse every year and fail the MOT when they do.

  • Suspension arm bushes and joints2× usual
    BMW 3 Series
    7% All 1990 cars
    3.5%

    Failed outright at MOT: 1%, against 0.5% of all 1990 cars. The rest were advisories or minor defects.

    Rough price £120–£180 (one arm) ClickMechanic

    At the viewing: Listen for clunks over bumps and feel for the steering wandering. Worn arm bushes show as cracked rubber near the wheels.

  • Steering rack inner joints2.2× usual
    BMW 3 Series
    4.9% All 1990 cars
    2.2%

    Failed outright at MOT: 0%, against 0% of all 1990 cars. The rest were advisories or minor defects.

    Rough price £100–£450 our estimate

    At the viewing: On a straight road the steering wheel should sit straight. Listen for knocks when turning, and check the steering feels even.

By area

The share of 1990 BMW 3 Series MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Suspension
    24% of testsRough price £120–£400

    At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.

  • Brakes
    22% of testsRough price £150–£350

    At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.

  • Oil and fluid leaks
    17% of testsRough price £80–£600

    At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.

  • Lights and electrics
    16% of testsRough price £10–£80

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

  • Tyres
    10% of testsRough price £70–£150

    At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.

  • Rust and bodywork
    10% of testsRough price £150–£1,000

    At the viewing: Check the sills, wheel arches and underneath for rust, and look along the panels for uneven gaps or paint.

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Other years

YearMOT testsMost flagged
2021386Tyres 22%
20203,166Tyres 24%
201911,430Tyres 25%
20188,504Tyres 26%
20173,622Tyres 26%
201624,243Tyres 27%
201530,049Tyres 29%
201429,426Tyres 31%
201331,654Tyres 30%
201230,461Suspension 32%
201124,841Tyres 34%
201022,691Suspension 38%
200920,166Suspension 40%
200819,093Suspension 42%
200721,666Brakes 42%
200615,748Brakes 46%
20059,866Brakes 45%
20047,889Brakes 43%
20038,471Brakes 43%
20026,561Brakes 42%
20014,182Brakes 40%
20002,180Brakes 42%
19992,166Brakes 36%
19981,679Brakes 34%
19971,277Brakes 36%
1996917Suspension 36%
1995607Brakes 36%
1994357Suspension 33%
1993374Brakes 31%
1992404Suspension 27%
1991629Suspension 24%

Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 1990 BMW 3 Seriess registered in 1990. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score