The company knows of multiple instances of the part failing, but there are no reports of accidents or injuries.
BMW will recall 8,752 vehicles from the 2011 and 2012 model years in the United States for a potential loss of power to the rear wheels. The campaign will affect:
- 2011-2012 1M
- 2011-2012 135i
- 2011 335d
- 2011 335i
- 2011 535i
- 2011 535i GRAN TURISMO
- 2011 550i GRAN TURISMO
- 2012 740i
- 2012 740Li
- 2011 Z4
The driveshaft’s constant velocity joint may not be durable enough on these vehicles, especially around the rivets on them. This component transfers drive torque between the transmission output shaft and
the rear drive shaft. Over time, the CV joint can break, and this would mean that power would no longer go to the back wheels.
BMW indicates that drivers would receive some warning of this problem by noise from around the CV joint. “Over time, this noise will increase along with vibration,” according to the company's report. The automaker has no reports of accidents or injuries from this problem.
According to the chronology that BMW submitted to the National Highway Traffic Safety Administration, the company received its first complaint of this problem on August 2, 2016, when the driver of a 2012 BMW 750i xDrive reported a loss of power. An investigation eventually found the problem with the CV joint, and the company issued a service action for the affected all-wheel-drive 7 Series models.
On November 30, 2016, the company received a report of the driveshaft breaking on a 2011 BMW 335d that caused damage to the vehicle’s underbody and interior. Further research by the automaker showed three other incidents of the problem. An investigation indicated the same durability issue with the CV joint. Yet another case of this issue came to the company’s attention on January 24, 2017, involving a 2012 135i.
BMW dealers will inspect the rear driveshaft CV joint. Depending on the part’s production date, technicians will replace the component. The repair campaign will begin March 27, 2017.