2005 BMW 645CI Electrical system Problems
- Complaints
- 4about this part
- Share
- 12%of 33 total for the year
- Median mileage
- 102,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the electrical system of the 2005 BMW 645CI, 12% of the 33 complaints for this model year. Where a mileage was given, the median is 102,000 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.
“I own a Bmw 645CI 2005 convertible I have issues yes isssues with this vechile, first issue is the infamous idrive that never really worked properly since I purchased the car, it blinks on and off for 30mins then it would magically come on until one day it just didn't come back on this was after a trip to the dealer to get the convertible top lock reprogrammed.. …”
NHTSA complaint #11088512, filed 2018-04, 105,000 miles“I was driving on the highway and my Bmw 645 fault message displayed (transmission related malfunction,drive moderately). After that,the service engine soon light came on,along with a new fault message that displayed (increased emission). After that, the car speed abruptly went from 60, to (what felt like first gear),then just cut off!! There were cars and trucks all around me,doing the speed limit of 60 or higher,just missing me,while I'm sitting stuck in the middle of the highway!! …”
NHTSA complaint #10608586, filed 2014-07, 98,345 miles“I was driving on the autobahn and my Bmw 645 and all fault message were displayed. After that, the car speed abruptly,then just cut off!I it restarted with codes and all then shut off again. This continued five times until I reached my destination. I restart the car,and it started, but the radio and door siren was not working with no fault messages;no service engine light; and drove fine for a few min. And then did the same thing again!! I took the car to a Bmw repair shopped to have the fault codes read, which end up being a long list of codes.”
NHTSA complaint #10808701, filed 2015-12, 102,000 milesRelated service bulletins
- 10249437Jan 16, 2024The basic conditions for initializing the power windows are not met.
- 10249027Jan 11, 2024The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery…
- 10182619Oct 1, 2020Discharged Battery Energy Diagnosis Must Be Performed: The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has…
- 10146779Nov 1, 2016Diagnosing Stored Fault Codes to Help Avoid Repeat Repair Visits This Service Information bulletin supersedes SI B07 03 14 dated October 2015.. Fault codes stored in vehicles…
- 10151119Feb 1, 2016SI B84 03 14 February 2016 Communication Systems Technical Service This Service Information bulletin supersedes SI B84 03 14 dated October 2014. SUBJECT Bluetooth Connection…
- 10151115Feb 1, 2016SUBJECT Audio System Speaker Testing. For audio system speaker testing there is a NED (Non Electrical Diagnosis) Test Plan available. CAUSE We previously recommended use of the…
- 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…
- 10147837Nov 1, 2015"The Disclaimer screen automatically disappears from the CID after 10 seconds. INFORMATION https://www.bmwtis.net/tiscode/cgi-bin/bulletin.aspx?sie_path=/tsb/bulletins/htm_store/2…
- 10147123May 1, 2015Diagnosing Stored Fault Codes to Help Avoid Repeat Repair Visits. Analysis of FASTA data and repeat repair visit reports indicates that there are many fault codes that are stored…
- 10147067Feb 1, 2015This Service Information bulletin supersedes SI B07 03 14 dated February 2015. designates changes to this revision SUBJECT Diagnosing Stored Fault Codes to Help Avoid Repeat…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2005 | 4 | 12% |
| 2004 | 3 | 27% |
Other parts of the 2005 BMW 645CI
10 complaintsBrakes
6 complaintsSeat belts
5 complaintsSeats
4 complaintsEngine
3 complaintsSteering
3 complaintsEngine cooling
2 complaintsExterior lighting
2 complaintsOther or unknown
2 complaintsBody and structure
2 complaintsSuspension
1 complaintsTransmission 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 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