Used car guide

2001 BMW Z3: common problems and what to check

What gets flagged at MOT on 2001 BMW Z3s, from 1,747 tests in 2025, plus known faults and what to look at before you buy one.

1,747MOT tests in 2025
72%pass first time (all 2001 cars: 61%)
3,300typical miles a year
2×the usual rate for suspension arm

What stands out

Parts flagged at MOT more often on 2001 BMW Z3s than on all cars registered in 2001.

  • Suspension arm2× usual
    BMW Z3
    7.3% All 2001 cars
    3.6%

    Failed outright at MOT: 0.5%, against 0.3% of all 2001 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.

  • Anti-roll bar link bushes2× usual
    BMW Z3
    5.7% All 2001 cars
    2.9%

    Failed outright at MOT: 1.2%, against 0.6% of all 2001 cars. The rest were advisories or minor defects.

    Rough price £100–£280 (pair of drop links) Checkatrade

    At the viewing: Drive slowly over bumps and listen for a knock or rattle from the front. Worn anti-roll bar links are a cheap fix.

  • Side repeaters2.5× usual
    BMW Z3
    3.8% All 2001 cars
    1.5%

    Failed outright at MOT: 1.2%, against 0.8% of all 2001 cars. The rest were advisories or minor defects.

    Rough price £10–£80 our estimate

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

  • Airbag warning light2× usual
    BMW Z3
    2.6% All 2001 cars
    1.3%

    Failed outright at MOT: 2.3%, against 1.1% of all 2001 cars. The rest were advisories or minor defects.

    Rough price £10–£80 our estimate

    At the viewing: Ask a friend to check every light while you work the switches: indicators, brake lights, fog lights and reversing lights.

  • Power steering pipes and hoses2.1× usual
    BMW Z3
    2.1% All 2001 cars
    1%

    Failed outright at MOT: 0%, against 0.1% of all 2001 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.

Better than most

Number plate lights: 1.7% here, against 6.6% of all 2001 cars. Headlights: 4.3% here, against 9.1% of all 2001 cars.

By area

The share of 2001 BMW Z3 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Brakes
    34% 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.

  • Suspension
    32% 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.

  • Lights and electrics
    24% 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
    21% 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.

  • Oil and fluid leaks
    16% 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.

  • Rust and bodywork
    9% 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
20021,040Brakes 33%
20001,844Brakes 35%

Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2001 BMW Z3s registered in 2001. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score