2004 BMW 7 Series Electrical system Problems
- Complaints
- 3about this part
- Share
- 11%of 28 total for the year
- Median mileage
- 44,827miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the electrical system of the 2004 BMW 7 Series, 11% of the 28 complaints for this model year. Where a mileage was given, the median is 44,827 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The rear side door unexpectedly open while driving, a week later the other side did the same thing the for open then it closed by its self. I was driving straight on a highwsy.”
NHTSA complaint #10785243, filed 2015-10, 140,000 miles“The horn did not work. After complaining to the dealer for more than 5 months. The manufacturer was contacted and they told him that the horn only worked in certain places because of the air bag. The manufacturer was contacted about the horn problem. The manufacturer told the consumer that the steering wheel was designed specifically for the way the air bag is situated and unfortunately no adjustments could be made to the design of the steering wheel.”
NHTSA complaint #10087934, filed 2004-09, 4,000 miles“The contact owns a 2004 Bmw 745i. The contact stated that the engine would overheat and the vehicle would shut down and lose power. The safety mechanism in the vehicle would shut down if it sensed a failure with the vehicle. The failure occurred a total of three times while driving 40 MPH. On one occasion, she was able to drive to the dealer around the corner and the other two times, she had to have the vehicle towed to the dealer. The dealer could not diagnose the cause of the failure because the code was lost. …”
NHTSA complaint #10238847, filed 2008-08, 44,827 milesRelated service bulletins
- 10249027Jan 11, 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…
- 10245422Nov 22, 2023Customers may state that the alarm system (DWA) is not active after locking their unoccupied vehicle. Depending on the vehicleâÂÂs equipment and settings, no acoustic or…
- 10182619Oct 1, 2020Discharged Battery Energy Diagnosis Must Be Performed: The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has…
- 10052012Mar 1, 2013Bmw: battery has an increased demand due to developemental process of the electrical system. This is causing the batter to need to undergo an energy diagnosis.
- 10051519Dec 1, 2012Bmw: the high-voltage (hv) battery cells could be damaged if the vehicle is prevented from entering sleep mode for an extended period of time. Updated 03/11/2013
- 10043689Feb 1, 2012Bmw: after a few miles or several thousand miles, check control message, hybrid malfunction, may appear after programming of software for vehicle.
- 10033132Oct 1, 2010Bmw vehicles: n63 turbocharger auxiliary water pump faults. The service engine soon lamp is illuminated with the following fault codes stored in the dme control module…
- 10032990Apr 1, 2010Bmw: diagnosis of dme me 9.2 map thermostat fault 2ef4/279b. The service engine soon light illuminated. The engine does not overheat and the map thermostat operates properly…
- 10029348Apr 1, 2009Bmw: sporadically, the following conditions may occur-wipers are running on a dry window; speedometer and tachometer are inoperative; check control message emf dropped out (drive…
- 10012788Oct 1, 2005Loss of power while decelerating and turning or coming to a stop. *eh bmw 5 series, 6 series, 7 series produced between 09/03 to 8/04.
Electrical system: other model years
Other parts of the 2004 BMW 7 Series
5 complaintsTransmission and drivetrain
4 complaintsAir bags
3 complaintsEngine cooling
3 complaintsFuel system
3 complaintsSeats
3 complaintsSteering
3 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsEquipment
1 complaintsExterior lighting
1 complaintsBody and structure
1 complaintsTires
1 complaints
← All problems reported for the 2004 BMW 7 Series
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology