There are 2 stored owner reports matching the lighting 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 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)DRIVER SIDE LOW BEAM HEADLIGHT QUIT WORKING WHEN IGNITION WAS TURNED ON. HEADLIGHT WAS WORKING FINE WHEN THE VEHICLE WAS PARKED. BLOWN LIGHT INDICATOR ON INSTRUMENT CLUSTER APPEARED. WHEN CHANGING OUT THE LIGHT I DISCOVERED ALL THE WIRES INSIDE THE HEADLIGHT ENCLOSURE WERE DAMAGED DUE TO HEAT. ALL OF THE WIRES INSULATION WAS DRY ROTTED , SECTIONS OF THE INSULATION BROKEN OFF OF THE WIRES AND SHORTED OUT TOGETHER. I HAVE MANY YEARS OF VEHICLE WIRING TROUBLESHOOTING AND DESIGN. THE WIRES IN THE HEADLIGHTS DO NOT HAVE THE APPROPRIATE JACKET RATING FOR THE HEADLIGHT LOCATION WHERE THEY WERE INSTALLED BY BMW. I BELIEVE THE HEAT FROM THE HEADLIGHTS DRIED OUT AND MADE THE WIRE JACKET BRITTLE. AFTER INVESTIGATION OF THE LEFT HEADLIGHT HOUSING BOTH HEADLIGHTS REQUIRE THE INTERNAL HARNESS OF EACH HEADLIGHT TO BE REPLACED DUE TO HEAT AND DRY ROT. THE SHORTING OF THE WIRES ONLY BLEW MY HEADLIGHT BULB AND NOT THE FUSE IN THE SYSTEM. THIS COULD BE THE REASON FOR THE OTHER PERSONS COMPLAINED ABOUT THEIR HEADLIGHTS TURNING ON AND OFF WHILE DRIVING. IF LEFT UNCHECKED THIS COULD CAUSE OTHER PROBLEMS IN THE CARS ELECTRICAL SYSTEM AND BE DANGEROUS IF THE LIGHTS SHORTED OUT DURING A NIGHT DRIVE.
TL* THE CONTACT OWNS A 2007 BMW Z4. THE CONTACT STATED THAT WHEN DRIVING AT VARIOUS SPEEDS, THE HEADLIGHTS WOULD FLICKER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 49,000. *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.