2021 BMW X4 UNKNOWN OR OTHER
Owner-reported problems and safety issues filed with NHTSA. Review common failures, severity levels, and complaint trends over time.
Complaint Timeline
Chronological view of owner reports
transfer case AWD/xDrive system drivetrain components The dealer diagnosed a transfer case failure on the BMW X4 xDrive. Vehicle displayed drivetrain malfunction warning. Repair estimate exceeds $20,000. The vehicle has under 50,000 miles. The issue appears consistent with known xDrive transfer case complaints. The warning light came on on January 7, 2026, at approximately 6 pm.
Trend Over Time
Complaints by year
Other Issues
Common problems reported
Quick Summary
The 2021 BMW X4 has 1 UNKNOWN OR OTHER complaints on file. Review the timeline above for detailed owner experiences.