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Electrical systemPart report

2008 BMW M5 Electrical system Problems

Complaints
2about this part
Share
33%of 6 total for the year
Median mileage
72,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the electrical system of the 2008 BMW M5, 33% of the 6 complaints for this model year. Where a mileage was given, the median is 72,500 miles. 1 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.

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 sunroof drains of my vehicle overfill or clog causing water to leak in the trunk and wheel well. The cars wheel well holds the cars battery, rdc, and pdc modules. Surrounded by foam when water reaches the modules they arc and spark causing them to heat up and melt. Also located in the trunk is several other electrical components xm radio amp, etc. If not caught in time could cause fire and maybe even death. You can't tell when they are overfilled/clogged until it's to late. I have replaced them 2 times both times almost causing fire to the car. …”

NHTSA complaint #10732757, filed 2015-07, 65,000 miles

“All wires leading into the headlights have deteriorated and are bare. It keeps shorting out the lights and seems to be a major fire hazard. This is a garage kept car with 80k miles. Appears many many others have the same problem. Please help.”

NHTSA complaint #11258658, filed 2019-09, 80,000 miles

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2013110%
2008233%
2007117%
200638%
2002117%

Other parts of the 2008 BMW M5

Engine
2 complaints
Air bags
1 complaints
Brakes
1 complaints
Electronic stability control
1 complaints
Equipment
1 complaints
Exterior lighting
1 complaints
Seats
1 complaints
Steering
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 2008 BMW M5

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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