NHTSA Owner Complaint Log
This page lists owner-reported complaints filed with NHTSA for the 2021 BMW Z4. Complaints are unverified consumer reports submitted to NHTSA and do not by themselves prove a defect or defect rate.
No complaints on record for this vehicle.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.