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Engine coolingPart report

2009 BMW 335I Engine cooling Problems

Complaints
6about this part
Share
7%of 85 total for the year
Median mileage
9,150miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the engine cooling of the 2009 BMW 335I, 7% of the 85 complaints for this model year. Where a mileage was given, the median is 9,150 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 buy my 2009 Bmw 335I with 39,700 miles, full Bmw service was done the same day, my next service was at 49,000 miles however at around 48,000 miles. When driving to work on the highway going 50mph I had to move over to the passing lane and when I attempted to accelerate about at 65mph the car started to shake very bad and the engine light came on and I loss power had to slow down to 20-25mph could have cause an accident as I was in the faster lane and car slow down rapidly!! Thank god I was able to move all the way over to the slower lane with little issue. …”

NHTSA complaint #10455612, filed 2012-04, 48,000 miles

“2009 Bmw 335I has had engine run at half power numerous times. Only once was it able to be taken to the dealership in time for them to retrieve any diagnostic information and act on it at that point in time, however it has suffered similar behavior since this point and supposedly they are unable to retrieve data, even within a week or two of the event occurring and state that nothing is wrong with it. …”

NHTSA complaint #10377129, filed 2011-01, 25,000 miles

“10/8/2010 - while traveling on alligator alley in southern florida, 2009 Bmw 335I experienced a severe loss of power with engine lamp turning on. Loss of power worsened for the next seventy five miles until the car could not go over forty miles per hour and had insufficient torque to go up any inclined highway off ramps. Took car back to Bmw dealership and was informed loss of power was due to failure of high pressure fuel pump, and was informed that the pump would be replaced and engine software updated. Car had approximately 10,000 miles at the time of incident.”

NHTSA complaint #10360230, filed 2010-10, 10,300 miles

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
2015110%
201325%
201177%
2010410%
200967%
2008126%
2007176%

Other parts of the 2009 BMW 335I

Fuel system
33 complaintsAir bags
29 complaintsElectrical system
15 complaintsEngine
10 complaintsExterior lighting
6 complaintsSeat belts
6 complaintsSeats
4 complaintsTransmission and drivetrain
3 complaintsElectronic stability control
2 complaintsOther or unknown
2 complaintsBrakes
1 complaintsEquipment
1 complaints

← All problems reported for the 2009 BMW 335I

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