There are 3 stored owner reports matching the electrical system leading-label group for the 2007 BMW Z4 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)LOW BATTERY SITUATION OVER THE WINTER CAUSED THE VEHICLE TO SLIP INTO "TRANSPORT MODE" WHERE THE AC, DEFROSTER, AND FAN SPEED WILL NOT WORK. THIS CREATES A HAZARDOUS VISIBILITY SITUATION DUE TO THE DEFROSTER NOT WORKING. AS I UNDERSTAND IT, THE TRANSPORT MODE IS SUPPOSED TO BE DISABLED WHEN THE CAR IS DELIVERED TO THE US BUT SOME DEALERS MISTAKENLY TURN IT OFF RATHER THAN DISABLE IT. TO DISABLE IT YOU MUST RETURN IT TO THE DEALER AND PAY FOR A HIGH SERVICE VISIT FOR A FEW MOMENTS OF PROGRAMMING. *TR
TL* THE CONTACT OWNS A 2007 BMW Z4. THE CONTACT STATED THAT THE DRIVER SIDE DOOR LOCK AND WINDOW FAILED TO FUNCTION. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE DOOR ACTUATOR WAS DEFECTIVE AND NEEDED TO BE REPLACED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 7,800 AND THE CURRENT MILEAGE WAS 8,800.
THE WIRING HARNESS UNDER THE DASH SPONTANEOUSLY IGNITED WHILE I WAS DRIVING. THE FIRE WAS PUT OUT WITH A FIRE EXTINGUISHER, BUT RE-IGNITED TWO MORE TIMES. IT DIDN'T STOP RE-IGNITING UNTIL THE BATTERY WIRES WERE DISCONNECTED FROM THE BATTERY TERMINALS. POLICE AND THE FIRE DEPT WERE CALLED. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
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.