BMW X4 review - Reliability and safety
The X4 includes a high standard of safety equipment across the range, although feedback from BMW owners could be better
As the X4 is likely to be used as a family car, safety remains a priority, and this is reflected in the generous provision of safety systems. Autonomous emergency braking (AEB) is fitted as standard across the range, and this can be supplemented with the optional fitment of active cruise control and lane-keeping assistance.
The optional Dynamic Safety system adds pre-emptive safety measures such as tightening the seatbelts if it determines that a crash is imminent, and can apply the brakes if an accident occurs. Euro NCAP produced an assessment of both the X3 and X4 in 2017, awarding both its maximum five-star rating.
The X4 didn't feature in our most recent Driver Power customer satisfaction survey, while BMW itself came 21st in the best car manufacturers rankings – down from 16th in 2022. BMW owners who took part in the survey have said their cars could be more reliable, and are quite expensive to run and maintain.
The BMW X4 comes with a three-year warranty, with no mileage limit for that period. Mercedes offers identical levels of coverage for its cars, while all new Audis get a three-year/60,000-mile factory warranty.
Another significant factor in running costs of the X4 will be servicing and parts replacement, although the BMW Pay Monthly Service Plan allows you to spread the cost of scheduled maintenance.
In this review
- 1BMW X4 reviewThe BMW X4 offers a little extra style over its X3 sibling, but it's more expensive and sacrifices practicality
- 2Engines, performance and driveThe X4’s powertrains are all excellent, but the six-cylinder diesels are a particular highlight
- 3MPG, CO2 and Running CostsFantastic economy numbers don’t quite make up for the high running costs associated with big SUVs like the X4
- 4Interior, design and technologyIt might be underpinned by an older generation of BMW design, build quality and interior tech is still excellent regardless
- 5Practicality, comfort and boot spaceThe X4 includes generous space for passengers and luggage, but the steep-sloping rear roofline means compromises have to be made
- 6Reliability and Safety - currently readingThe X4 includes a high standard of safety equipment across the range, although feedback from BMW owners could be better
- 7Used and nearly newA full used buyer’s guide on the BMW X4 covering the X4 Mk1 (2014-2018)