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Engine coolingPart report

2009 BMW 135I Engine cooling Problems

Complaints
3about this part
Share
10%of 29 total for the year
Median mileage
4,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the engine cooling of the 2009 BMW 135I, 10% of the 29 complaints for this model year. Where a mileage was given, the median is 4,500 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.

“I was driving my 2009 335i Bmw on highway 92 at ralston ave exit, and my car lost power when I stepped on the accelerator, the engine light came on and the malfunctioning engine warning. I felt very frightened thinking I would have.”

NHTSA complaint #10285682, filed 2009-09, 4,500 miles

“The service engine soon light comes on and the car will not accelerate and violently shakes. It is unpredictable. (the car is only 5 months old and had less than 4,000 miles on it when this began.) the dealer switched the spark plug, ignition coil and injector. Despite the dealer believing this fixed the problem it occurred again. The dealer then replaced the injector and again believed this fixed the problem but it did not. The dealer than replaced the dme. The dealer thinks this now fixes the problem, but I am not convinced. (this is a 335i, which is not an option I can choose for a Bmw car. …”

NHTSA complaint #10292104, filed 2009-11, 3,800 miles

“Car running rough, miss-firing, and loss of power while in traffic. November 2009 occurrence, high pressure fuel pump replaced. January 2010 occurrence, dealer requested permission to replace parts called for under the fault code, Bmw na refused to grant permission. March 2010 occurrence, dealer requested permission to replace parts called for under the fault code, Bmw na refused to grant permission.”

NHTSA complaint #10321322, filed 2010-03, 18,000 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2009310%
200812%

Other parts of the 2009 BMW 135I

Fuel system
16 complaintsElectrical system
4 complaintsAir bags
3 complaintsExterior lighting
3 complaintsEngine
2 complaintsBrakes
1 complaintsOther or unknown
1 complaintsBody and structure
1 complaints

← All problems reported for the 2009 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