Model records
What changes the warranty calculation
122 submitted complaints appear in the BMW 430i file. They stretch across 10 model years, with the median count per model year at 8.
The 2018 record contains 36 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.
