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Electrical systemPart report

2012 BMW 135I Electrical system Problems

Complaints
3about this part
Share
16%of 19 total for the year
Median mileage
50,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the electrical system of the 2012 BMW 135I, 16% of the 19 complaints for this model year. Where a mileage was given, the median is 50,000 miles. 2 recall campaigns on record are 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.

“Have taken the car five times for the same stalling,and lagging of the faulty dual clutch transmission. The car hesitates 3-5seconds no response to throttle input and then lunges violently forward. Car holds gear when pulling away from lights and then surges when parking the car almost causing me to hit cars parked next to me. Software has been updated on the car four times and the issue is still there. Was told that the mass airflow sensor was also faulty in the car and that might be causing the issue of surging and fluctuating idle. …”

NHTSA complaint #10496145, filed 2013-02, 2,000 miles

“******* delete voq ******* this complaint is being marked for deletion because it is requested by the consumer that they wish to have it removed*djr ******* delete voq *******”

NHTSA complaint #11191706, filed 2019-03, 50,700 miles

“The contact owns a 2012 Bmw 135I. The contact stated that while their wife was driving at approximately 45 MPH, the vehicle stalled while the power steering ceased with an unknown warning light illuminated. The contact contacted a certified mechanic who informed the contact that the failure was related to NHTSA campaign number: 13v044000 (electrical system) however, the VIN was not included. The vehicle had not been repaired. The manufacturer was made aware of the failure and a case was filed. The approximate failure mileage was 50,000.”

NHTSA complaint #11329311, filed 2020-06, 50,000 miles

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2012316%
2011726%
2010213%
2009414%
200848%

Other parts of the 2012 BMW 135I

Engine
10 complaintsTransmission and drivetrain
6 complaintsFuel system
5 complaintsAir bags
4 complaintsBrakes
1 complaintsElectronic stability control
1 complaintsOther or unknown
1 complaintsSeats
1 complaintsSuspension
1 complaintsVehicle speed control
1 complaints

← All problems reported for the 2012 BMW 135I

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