2003 BMW 525I Electrical system Problems
- Complaints
- 8about this part
- Share
- 25%of 32 total for the year
- Median mileage
- 37,300miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the electrical system of the 2003 BMW 525I, 25% of the 32 complaints for this model year. Where a mileage was given, the median is 37,300 miles. 1 a fire, according to the filers.
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.
“I was driving along the freeway when all of a sudden my car engine started to run very rough and the service engine light came on. My car have to be towed to the Bmw dealership and I was told the all of the ignition coils have to be replaced. My car then had only 29k+ miles.”
NHTSA complaint #10307921, filed 2010-02, 29,600 miles“I was driving on the freeway and turned the seat heater on. After about 5 minutes into my drive, I started to smell smoke and then saw smoke in the car. I pulled over and saw that the seat was catching on fire. I turned the seat heater off and doused the fire with water.”
NHTSA complaint #10259104, filed 2009-02, 45,000 miles“Repeated ignition coil failure on my 2003 Bmw 525I series. The dealers has attempted to repair pair this same problem four times. I question the safety of this vehicle.”
NHTSA complaint #10100530, filed 2004-11, 12,000 miles“Upon turning on the manufacturer installed drivers seat heater, the drivers seat heater shorted out causing extreme heat and smoke to rise from the left side of the seat. Although this did not cause a fire, it was extremely close to causing a fire. The heater was turned off, and the smoke and heat subsided. There was a significant electrical burning smell. Contacted a Bmw mechanic who stated that this was a common occurrence and a known issue with Bmw. He cited a case which caused a customers leather seat to burn and also burned his sports coat. …”
NHTSA complaint #10289698, filed 2009-10, 72,690 miles“I was driving and antitheft system went off while driving. Then wiper failed to work. I was told by dealer mechanic that the body control module was failing and advised not to drive the car because the antitheft system may cause the car to stop and the wiper system will stop when raining causing multiple accidents.”
NHTSA complaint #11419808, filed 2021-06Related service bulletins
- 10249437Jan 16, 2024The basic conditions for initializing the power windows are not met.
- 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…
- 10149557Oct 1, 2018For the above-referenced vehicles with driver?s side airbag modules, BMW of North America, LLC (?BMW NA?) will provide a Customer Support Program as outlined in the Takata…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2007 | 14 | 19% |
| 2006 | 7 | 9% |
| 2005 | 4 | 11% |
| 2004 | 21 | 25% |
| 2003 | 8 | 25% |
| 2002 | 5 | 17% |
| 2001 | 6 | 27% |
| 1995 | 4 | 17% |
| 1994 | 1 | 14% |
| 1993 | 1 | 20% |
| 1992 | 4 | 22% |
| 1991 | 3 | 23% |
| 1990 | 2 | 18% |
Other parts of the 2003 BMW 525I
10 complaintsExterior lighting
4 complaintsSeats
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsSeat belts
2 complaintsVehicle speed control
2 complaintsBrakes
1 complaintsEngine cooling
1 complaintsEquipment
1 complaintsLatches, locks and linkages
1 complaintsOther or unknown
1 complaintsSteering
1 complaints
← All problems reported for the 2003 BMW 525I
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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