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Engine coolingPart report

2003 BMW 330XI Engine cooling Problems

Complaints
1about this part
Share
3%of 33 total for the year
Median mileage
79,096miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine cooling of the 2003 BMW 330XI, 3% of the 33 complaints for this model year. Where a mileage was given, the median is 79,096 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 had no symptoms leading up to the event. Car was idling in parking lot to warm up and randomly turned off. Would not turn back on and had to be towed to a shop. Found out that the crankcase ventilation system froze causing oil present in all six cylinders. System was replaced once the mechanic had access to the technical service bulletin. Mechanic was surprised to see Bmw had no recalls for this design flaw since it is very dangerous. …”

NHTSA complaint #10311127, filed 2010-02, 79,096 miles

Engine cooling: other model years

YearComplaintsShare of year
200655%
200313%
200215%
2001218%

Other parts of the 2003 BMW 330XI

Air bags
13 complaints
Electrical system
8 complaints
Tires
4 complaints
Exterior lighting
3 complaints
Other or unknown
3 complaints
Engine
2 complaints
Body and structure
2 complaints
Brakes
1 complaints
Latches, locks and linkages
1 complaints
Seats
1 complaints
Steering
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 2003 BMW 330XI

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