2004 BMW Z4 electrical system problems
14 owner complaints filed with NHTSA name the electrical system on the 2004 BMW Z4 — 3% of all complaints for this model year.
What owners report
“Reoccuring issue: -door locks not functioning by remote or central button -wipers not functioning -trunk release not functioning by remote or button -windows not functioning -lighting of interior not working, to include gauge cluster -top not functioning issues intensify on days of low/higher…”
filed Jul 24, 2020
“I had this car built and I am the only owner and driver. I have had a personal mechanic take meticulous care of it over the years and the car is stored for approximately 6 months/year because I do not drive it in the snow, and frankly, hardly drive it even when raining. However, it never fails that…”
filed May 7, 2020
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
The basic conditions for initializing the power windows are not met.
B510819 · Service Bulletin/Repair Instructions · issued Jan 16, 2024The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information…
B611305 · Service Bulletin/Repair Instructions · issued Jan 11, 2024
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% |
| 2003 Z4 | 13 | 3% |
Other reported problem areas on the 2004 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.