Used car guide

2006 BMW X3: common problems and what to check

What gets flagged at MOT on 2006 BMW X3s, from 2,382 tests in 2025, plus known faults and what to look at before you buy one.

2,382MOT tests in 2025
65%pass first time (all 2006 cars: 57%)
7,300typical miles a year
1.6×the usual rate for engine oil leaks

What stands out

Parts flagged at MOT more often on 2006 BMW X3s than on all cars registered in 2006.

  • Engine oil leaks1.6× usual
    BMW X3
    22.4% All 2006 cars
    13.7%

    Failed outright at MOT: 0.3%, against 0.3% of all 2006 cars. The rest were advisories or minor defects.

    Rough price £80–£600 our estimate

    At the viewing: Look under the engine and where the car is usually parked for fresh oil. Ask whether the leak has been looked at.

  • Airbag warning light2.5× usual
    BMW X3
    3.2% All 2006 cars
    1.3%

    Failed outright at MOT: 3%, against 1.2% of all 2006 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.

  • Diesel smoke emissions2.6× usual
    BMW X3
    2.3% All 2006 cars
    0.9%

    Failed outright at MOT: 1.3%, against 0.7% of all 2006 cars. The rest were advisories or minor defects.

    Rough price £175–£900 (catalytic converter) ClickMechanic

    At the viewing: Look for smoke when revving the warm engine and for engine or DPF warning lights.

  • Anti-lock braking system2.2× usual
    BMW X3
    2.6% All 2006 cars
    1.2%

    Failed outright at MOT: 2.6%, against 1.1% of all 2006 cars. The rest were advisories or minor defects.

    Rough price £100–£350 our estimate

    At the viewing: On a quiet road, brake firmly from about 30mph. The car should stop straight without pulling.

Better than most

Rigid brake pipes: 1.3% here, against 14.1% of all 2006 cars. Headlights: 6.5% here, against 14.3% of all 2006 cars.

By area

The share of 2006 BMW X3 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Suspension
    40% 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.

  • Tyres
    33% 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.

  • Brakes
    30% 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.

  • Lights and electrics
    30% of testsRough price £10–£80

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

  • Oil and fluid leaks
    24% 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.

  • Wipers, windscreen and mirrors
    13% of testsRough price £15–£250

    At the viewing: Check for chips in the driver's view, and test the wipers and washers.

Looking at a BMW X3?

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Other years

YearMOT testsMost flagged
20227,442Tyres 21%
202110,679Tyres 23%
20207,575Tyres 23%
201915,680Tyres 24%
20188,148Tyres 25%
20178,054Tyres 26%
20168,948Tyres 27%
20157,025Tyres 26%
20146,052Tyres 28%
20137,109Tyres 28%
20126,659Suspension 29%
20113,844Suspension 30%
2010818Suspension 31%
20091,181Suspension 31%
20081,257Suspension 33%
20071,787Suspension 40%
20052,022Suspension 45%
20041,719Oil and fluid leaks 42%

Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2006 BMW X3s registered in 2006. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score