Best Year to Buy a Bmw X4
Reliability rankings across 10 model years, based on NHTSA owner complaints
Based on 10 model years of NHTSA complaint data, the 2025 Bmw X4 is the most reliable year to buy with a Klunk Score of 100/100 ("Smooth Ride") and only 2 owner complaints. The 2020 model year is the least reliable with 15 complaints and a score of 97/100 ("Smooth Ride").