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What to check: BMW iX3

CBy miles

Ranked across all years of the BMW iX3, from its own MOT record and from what owners report. Tick it off at the car.

From this model's MOT record

The physical checks its own defect data says are worth your time, most telling first.

DampersLook for oil misting on the damper body behind each wheel, then push down hard on each corner of the car. It should settle in one bounce. A floaty or crashy ride on the test drive is the same fault felt from the driver's seat.Recorded on 2.0% of tests at age 3-5 · class average 2.1%

Lights and horn walkroundWith a helper, run every light: dipped, main beam, indicators, brake lights including the high-level one, reverse, fog, and the horn. On newer cars a dead LED section can mean replacing the whole lamp unit rather than a bulb.Recorded on 0.8% of tests at age 3-5 · class average 0.1%

Worth doing on any used car

These judge the seller's upkeep rather than the model.

Tyres, all fourCheck the tread across the full width of each tyre, inner edge included, and look for cracking and mismatched brands. A set of decent tyres is £500 or more on most cars, which makes this the easiest money to take off a price. If the pressure warning light is on, budget for sensors too.Recorded on 24.6% of tests at age 3-5 · class average 16.6%

Windscreen and wipersRuns high on this modelScan the glass in daylight for chips, especially in the driver's line of sight where even a small one can fail the MOT. Run the washers and check the wipers clear without smearing.Recorded on 3.5% of tests at age 3-5 · class average 1.7%

Pads and discsLook through the wheel spokes at the brake disc. A pronounced lip on its outer edge, or a rusty and scored face, means discs and pads are due all round, a few hundred pounds on most cars. A haggling point rather than a reason to walk away.Recorded on 0.4% of tests at age 3-5 · class average 7.0%

Because of what owners report

Drawn from the owner reports rather than the MOT data. These are the model-specific ones.

Drive it in both Sport and Comfort mode over rough, patchy tarmac, not just a smooth test route.Excessive bouncing in Sport mode is the harsh-ride niggle owners and reviewers describe.

If you live somewhere hilly or icy in winter, ask about tyre spec and try the car in the wet.Every iX3 is rear-wheel drive only, so traction leans more on tyre choice than on an all-wheel-drive rival.

Test every window switch, interior light and the iDrive screen for slow response or unprompted reboots.Lights and electrics is the measured weak spot for this class, and the iX3 shares wiring and control units with the combustion X3, where these faults are well documented.

Check the MOT history for a repeated advisory on the same electrical item rather than a one-off.A recurring advisory points to an unresolved fault, not a random glitch.

Spend a few minutes with the steering wheel controls and dig into a few infotainment menus.A fiddly layout and inconsistent trim quality are the niggles reviewers flag, minor but worth knowing before you buy.

Ask for the car's charging history, or check the range readout against the original official figure for its age.A big shortfall for the mileage points to battery degradation, an expensive item to put right once the warranty's gone.

Check the service history for BMW software or service campaigns on the EV systems.BMW pushes updates for EV-specific electronics; a car that's missed several is more likely to show odd behaviour.

Full BMW iX3 reliability report