By YOUCANIC on May 15, 2019
BMW owners may experience loss of power (propulsion) and loud noise from the rear drivetrain.
BMW flex disc ( also may be referred to as guibo disk or constant velocity joint) joint which transfers power from transmission to the rear driveshaft may fail in certain BMWs due to a weak material.
According to BMW "The flex disc may not have been produced with insufficient strength."1 If this problem occurs the BMW will not move when placed in gear.
If the flex disc joint breaks while driving, it can cause damage to the underbody of the BMW.
Don't ignore this problem. As your BMW ages and you put more miles, the constant velocity joint may break while driving causing an accident.
To fix this problem your BMW dealer or your mechanic will need to replace the 26117610061 flex disc.
The flex disc is between the transmission and transfer case and will need to be replaced if it hasn't been replaced already.
The bolts should be replaced as well. If your BMW is covered by recall the BMW dealer will replace the flex disc free of charge. Make sure to replace all six hexagonal head bolts and the self-locking nuts.