2009 BMW Z4 Electrical system Problems
- Complaints
- 2about this part
- Share
- 9%of 22 total for the year
- Median mileage
- 54,600miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the electrical system of the 2009 BMW Z4, 9% of the 22 complaints for this model year. Where a mileage was given, the median is 54,600 miles. 2 recall campaigns on record are filed under a similar system.
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.
“Engine unexpectedly stalled and shutdown while in movement with potential to cause accident. Vehicle cannot be turned on until full stop is achieved and transmission placed in p. Idle engine RPM continues to vary drastically up and down with indication a problem persists and is likely pose the same safety risk. I bought vehicle used on 2012 and had the issue shortly after purchase twice at highway speeds. Dealership took months to apparently resolve. I am back at risk.”
NHTSA complaint #11012694, filed 2017-08, 98,000 miles“The contact owns a 2009 Bmw Z4 convertible. The contact was driving approximately 10-20 MPH when the vehicle stalled without warning. He was able to immediately restart the vehicle without hesitation. The vehicle was not repaired. The failure would occur intermittently. The vehicle was taken to an authorized dealer where the computer was replaced. The contact stated that the vehicle would no longer operate following repairs. The vehicle was left with the dealer where the contact was awaiting further diagnosis. The vehicle was not repaired. …”
NHTSA complaint #10356178, filed 2010-09, 11,200 milesRelated recalls
- 13V044000Feb 7, 2013BMW is recalling certain model year 2008-2012 1-Series coupes and convertibles manufactured December 2007 through September 2011; and 2007-2011 3-Series…Covers: BMW Z4 2009–2011, 328I 2007–2011, 335I 2007–2011 +2 more
- 09V327000Aug 11, 2009Bmw is recalling certain model year 2009 z4 30i and 35i vehicles manufactured between march 10 and march 19, 2009. A defective crimp connector in a belt…Covers: BMW Z4 2009
Related 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…
- 10162421Jul 10, 2019N54, N54T - Catalytic Converter Conversion Faults Stored. The Service Engine Soon (MIL) lamp could come on with one or both of the following faults stored in the DME: * 29F4…
- 10162404Jul 10, 2019"Outside Door Mirror Moves when Locking or Unlocking the Vehicle. The door mirror tilts immediately after unlocking or locking. The mirror position does not correspond to the…
- 10136745May 1, 2017ConnectedDrive/BMW Assist System Diagnosis Information
- 10146660Apr 1, 2017The underlying 2G technology for the GSM (Global System Mobile communication) COMBOX will no longer be supported by the cellular network providers after December 31, 2016. This…
- 10146659Apr 1, 2017SERVICE ACTION: GSM COMBOX DEACTIVATION / DISCONTINUATION WITH 4 YEAR ASSIST SERVICE. What's New: ? Model: Option code removed to prevent confusion about affected vehicles ?…
- 10146904Oct 1, 2016USB CABLE: BATTERY DISCHARGE/AUDIO FAILURE/RADIO RECEPTION. No sound from the radio, telephone, gong signal and or PDC. Poor radio reception and failure of the telematics…
- 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…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 2 | 40% |
| 2019 | 1 | 20% |
| 2015 | 2 | 40% |
| 2014 | 3 | 43% |
| 2013 | 3 | 43% |
| 2012 | 2 | 40% |
| 2011 | 3 | 7% |
| 2010 | 1 | 10% |
| 2009 | 2 | 9% |
| 2008 | 2 | 11% |
| 2007 | 4 | 12% |
| 2006 | 13 | 14% |
| 2005 | 6 | 3% |
| 2004 | 14 | 3% |
| 2003 | 13 | 3% |
Other parts of the 2009 BMW Z4
11 complaintsEngine
4 complaintsSeat belts
2 complaintsAir bags
1 complaintsBrakes
1 complaintsEngine cooling
1 complaintsFuel system
1 complaintsSteering
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2009 BMW Z4
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