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Electrical systemPart report

2012 BMW 550I Electrical system Problems

Complaints
4about this part
Share
11%of 35 total for the year
Median mileage
59,287miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the electrical system of the 2012 BMW 550I, 11% of the 35 complaints for this model year. Where a mileage was given, the median is 59,287 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 car threw a drive train malfunction code which happens weekly on these engines and the car jumped a lane as it misfired and went into limp driving mode. If there was cars next to me there would have been a crash. Since then Bmw has issued a customer campaign on the n63 engine effecting thoughts of cars. They are changing tons of parts from injectors to fuel rails. It should be a full blown recall and the NHTSA should get involved on this. My car has been in the shop since 12/23 and still has not been repaired correctly. …”

NHTSA complaint #10676388, filed 2015-01, 40,800 miles

“My car died in an intersection unexpectedly as if my battery had died. My infant was in the backseat. This was suck a busy intersection that police dept had to park behind me to keep me from being hit. The car could not be put in neutral to move it out of the way. After over an hour we were able to restart the car and excessive battery discharge message displayed. This is on top of me taking it to the dealership for excessive oil consumption and BMW was aware my motor would eventually give out.”

NHTSA complaint #11440813, filed 2021-11

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2015117%
201317%
2012411%
20112024%
2010327%
2008928%
200725%
2006313%

Other parts of the 2012 BMW 550I

Engine
13 complaints
Fuel system
13 complaints
Tires
8 complaints
Transmission and drivetrain
4 complaints
Wheels
4 complaints
Steering
2 complaints
Brakes
1 complaints
Engine cooling
1 complaints
Exterior lighting
1 complaints
Suspension
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2012 BMW 550I

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