Driveshaft Center Support Bearing, Rein - E46 M3, E85 Z4M (26122282495)

The center support bearing supports both sections of the driveshaft and allows it to shift under load. A bearing in the middle is suspended in rubber. Over time, and with a lot of loading/unloading of the driveshaft, the bearing or the rubber wears out.

Symptoms of a bad center support bearing is usually a thunk from the center of the car, especially when dipping in/out of the throttle. A great time to replace the center bearing, and the front flex disc, is during a clutch overhaul, short shift kit install, or any time the driveshaft is removed from the car.

This is an OEM center support bearing made by Rein, an original supplier to BMW for many drivetrain and engine components.