2003 BMW Z4 electrical system problems
13 owner complaints filed with NHTSA name the electrical system on the 2003 BMW Z4 — 3% of all complaints for this model year.
What owners report
“Tl* the contact owns a 2003 bmw z4. The contact stated that while driving at 20 mph, various warning lights illuminated on the instrument panel and the vehicle began to accelerate independently without the accelerator pedal being depressed. The vehicle began to veer side to side and as a result, an…”
filed Apr 1, 2016
“Passenger door lock will not unlock with the key fob or the interior switch. All other locks respond appropriately. The door will open manually with the interior handle. I replaced the lock actuator with no improvement. I am now trying to replace the electrical relay. The date below is approximate…”
filed Oct 20, 2015
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Power Reduction FC2A82 Intake VANOS and/or FC2 A87 Exhaust VANOS Camshaft Fault: The "Service Engine Soon" (MIL) lamp is illuminated and engine power reduction is perceived. This situation can occur after driving for…
B110208 · Service Bulletin/Repair Instructions · issued Apr 1, 2020"Outside Door Mirror Moves when Locking or Unlocking the Vehicle. The door mirror tilts immediately after unlocking or locking. The mirror position does not correspond to the memory position preset by the customer…
513608 · Service Bulletin/Repair Instructions · issued Jul 10, 2019
Electrical System problems in other Z4 years
| Year | Reports | Share |
|---|---|---|
| 2011 Z4 | 3 | 7% |
| 2009 Z4 | 2 | 9% |
| 2008 Z4 | 2 | 11% |
| 2007 Z4 | 4 | 12% |
| 2006 Z4 | 13 | 14% |
| 2005 Z4 | 6 | 3% |
| 2004 Z4 | 14 | 3% |
Other reported problem areas on the 2003 BMW Z4
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.