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BrakesPart report

2005 BMW 645CI Brakes Problems

Complaints
6about this part
Share
18%of 33 total for the year
Median mileage
89,290miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the brakes of the 2005 BMW 645CI, 18% of the 33 complaints for this model year. Where a mileage was given, the median is 89,290 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.

“My car a 645CI 2005 started making a squeaking noise and I replaced the brakes and disc after spending $800 my car was having the same problem. I run the machine and said that it was the brake booster. I took my car to my local mechanic and bought a compatible piece for this car and got worse. Then after spending over $400 I realized that there was a recall for these piece where Bmw my local dealer in ny wanted to charged $2500 for the job. I told them about my local mechanic and they would not touch the car because the original piece was removed. …”

NHTSA complaint #10443770, filed 2012-01, 67,000 miles

“The brake vacuum pump seals are leaking. This ultimately will affect the brake assist and potentially result in failure to stop the vehicle within prescribed stopping distances creating potential for a crash. This problem was identified by the local Bmw dealership in highlands ranch denver. …”

NHTSA complaint #10873926, filed 2016-06, 96,500 miles

“The contact owns a 2005 Bmw 645CI. The contact stated that an unknown fluid was leaking from engine compartment. The contact stated no warning light was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed with needing the vacuum pump to be replaced. The vehicle was not repaired. Upon investigation, the contact associated the failure with NHTSA campaign number: 10v446000 (service brakes, hydraulic) however, the VIN was not included. The manufacturer had not been informed of the failure. The failure mileage was approximately 120,000.”

NHTSA complaint #11395819, filed 2021-02, 120,000 miles

“The contact owns a 2005 Bmw 645CI. The contact stated that while traveling 30 MPH up a hill, the brakes failed to respond. The brake pedal went to the floor and the contact had to apply the emergency brake to stop the vehicle. The vehicle was taken to an independent mechanic, who diagnosed and repaired the brake booster , the vacuum pump, the brake master cylinder, the vacuum line, the brake vacuum pump, and the brake vacuum gasket. The vehicle was repaired. …”

NHTSA complaint #10608722, filed 2014-07, 89,290 miles

“The contact owns a 2005 Bmw 645CI. The contact was driving approximately 15 MPH, and approached a traffic signal. While the brakes were engaged the vehicle began to roll, and the vehicle came to a complete stop after excessive force was applied to the brake pedal repeatedly. There was a recall associated with the NHTSA campaign id number (service brakes, hydraulic:power assist:vacuum). The dealer informed the contact that he would be responsible for the recall repair expense, and the manufacturer would reimburse for the repair. The vehicle was not repaired. The failure mileage was 72,000. …”

NHTSA complaint #10366893, filed 2010-11, 72,000 miles

Related service bulletins

Brakes: other model years

YearComplaintsShare of year
2005618%
2004218%

Other parts of the 2005 BMW 645CI

Air bags
10 complaints
Seat belts
5 complaints
Electrical system
4 complaints
Seats
4 complaints
Engine
3 complaints
Steering
3 complaints
Engine cooling
2 complaints
Exterior lighting
2 complaints
Other or unknown
2 complaints
Body and structure
2 complaints
Suspension
1 complaints
Transmission and drivetrain
1 complaints

← All problems reported for the 2005 BMW 645CI

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 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