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Engine coolingPart report

2005 BMW 545I Engine cooling Problems

Complaints
3about this part
Share
4%of 78 total for the year
Median mileage
64,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 3 complaints about the engine cooling of the 2005 BMW 545I, 4% of the 78 complaints for this model year. Where a mileage was given, the median is 64,000 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 coolant transfer pipe which runs through the engine leaked all of the coolant and required an immediate shut down. It required a repair costing approximately $6,700 which included 38 hours of labor. This is clearly a design flaw. It is widely cited on the internet.”

NHTSA complaint #10428680, filed 2011-10, 64,000 miles

“An excessively harsh 2-1 downshift when decelerating to a stop, or transmission bangs into gear when accelerating from a full or a rolling stop (vehicle did not come to a complete stop).”

NHTSA complaint #10455602, filed 2012-04

“2005 Bmw 545I. Consumer writes in regards to several issues with vehicle to include passenger side airbag, transmission issues and leaks the consumer stated the issue with the passenger side air bag was recalled. Even though the part was replaced twice under warranty and exhibited the same symptoms as stated in the recall, the consumer's VIN was not included. The consumer also stated there was a jolt/delay when pulling away. Within the last three months, the transmission would shift between 30-40 MPH as if it were not getting enough fuel. …”

NHTSA complaint #10437142, filed 2011-12

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
200534%
200425%

Other parts of the 2005 BMW 545I

Air bags
34 complaints
Transmission and drivetrain
15 complaints
Electrical system
14 complaints
Brakes
10 complaints
Seat belts
9 complaints
Steering
5 complaints
Seats
4 complaints
Wheels
4 complaints
Equipment
3 complaints
Exterior lighting
3 complaints
Body and structure
3 complaints
Tires
3 complaints

← All problems reported for the 2005 BMW 545I

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