There are 2 stored owner reports matching the powertrain & transmission leading-label group for the 2009 BMW X3 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)Driver side drive shaft fell off while driving on the highway. Very dangerous, merging from one highway in onto another in the middle of gridlock. No lights on prior to failure, just completely snapped off, ripped thru my oil pan and coolant hoses. Was shown the damage when I brought it to a repair shop.
TL* THE CONTACT OWNS A 2009 BMW X3. THE CONTACT STATED THAT WHILE HER SON WAS DRIVING, THE RPM REVVED WITHOUT WARNING, AND THE VEHICLE INDEPENDENTLY DECELERATED. THE VEHICLE WAS TAKEN TO THE BMW OF LYNCHBURG LOCATED AT 2643 LAKESIDE DR - #6944, LYNCHBURG, VA 24501, WHERE IT WAS DIAGNOSED THAT THE MODULE MOTOR ON THE 4-WHEEL DRIVE TRANSFER CASE DISCONNECTED AND PLACED A STRAIN ON THE DRIVE TRAIN. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 79,236.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.