Model records
What changes the warranty calculation
88 submitted complaints appear in the BMW X4 file. They stretch across 12 model years, with the median count per model year at 7.
The 2015 record contains 18 complaint reports. No listed year has a higher raw count, though other years may be tied. This comparison uses all listed years without adjusting for sales or time on the road; it does not establish a failure rate.
Among the matching repair categories, Engine replacement or major internal repair has the highest midpoint parts estimate, at $7,000. Find that system in both the factory warranty and any proposed service contract.
