2004 BMW 645CI Engine Problems
- Complaints
- 1about this part
- Share
- 9%of 11 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 2004 BMW 645CI, 9% of the 11 complaints for this model year.
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 idrive system in my car continues to cut on and off, this eventually caused my car to shut off on me two times while in traffic with no warning or indication of the shut off. The sensor alert continuously goes off for everything in the car. I took my car to the BMW dealership in Huntsville Alabama, they had my car for almost a month and could not find the issue with the drive or anything the sensors were notifying me of. …”
NHTSA complaint #11431834, filed 2021-09Related service bulletins
- 10151068Feb 1, 2016This Service Information bulletin supersedes SI B07 03 14 dated October 2015. Diagnosing Stored Fault Codes to Help Avoid Repeat Repair Visits. Fault codes stored in vehicles…
- 10147598Jan 1, 2015"SUBJECT N62TU: ISTA Service Function for DME ""RAM Backup"". The ISTA Service Function test plan should be performed to clear stored values in the DME RAM memory after repairs…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2005 | 3 | 9% |
| 2004 | 1 | 9% |
Other parts of the 2004 BMW 645CI
5 complaintsSeat belts
4 complaintsElectrical system
3 complaintsBrakes
2 complaintsSeats
2 complaintsElectronic stability control
1 complaintsEngine cooling
1 complaintsSteering
1 complaintsTransmission and drivetrain
1 complaintsWheels
1 complaints
← All problems reported for the 2004 BMW 645CI
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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