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…
2007 BMW Z4 electrical problems
severe 3 complaints filed with NHTSA · avg repair $850
Complaints
3
Recalls
0
Crashes
0
Avg fix
$850
What owners are reporting 2 most recent
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
Common questions
How serious is the electrical problem on the 2007 BMW Z4?
It's a meaningful issue. 3 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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