Driveshaft Flex Disc (Guibo), Febi - E9X 325xi/328xi/330xi/335xi, E60/E61 525xi/528xi/530xi, E63 645ci, E65 745i, E84 X1 28iX

The flex disc (aka the guibo) connects the driveshaft to the transmission and provides a buffer to absorb driveline vibrations. The rubber flex disc takes the torque coming out of the transmission and delivers a seamless transition to the driveshaft. But over time the rubber is subjected to constant loading/unloading and it will break down. The rubber is designed to be the weakest link so that the rest of the driveline lasts longer.

Symptoms of a failed guibo will be a dull thunk when dipping in/out of the throttle and during shifts. You may also notice cracks in the rubber around the bolt holes. A great time to replace the guibo, and driveshaft center support bearing, is during a clutch overhaul, short shift kit install, or any time the driveshaft is removed from the car.

Install note: the flex disc may be directional. During install, look for an arrow on the outer rim. The arrow should point towards the flange and indicates the direction the bolt should go. Installing it backwards will cause premature failure of the flex disc.

This part is manufactured by an aftermarket supplier of European auto parts, including many rubber components. While not carrying OEM status, this part follows the design of the original very closely and uses similar materials. An aftermarket part may even have the same TUV approval as its OEM counterpart. The brand may even be OEM to another manufacturer besides BMW. This aftermarket brand has a two year warranty - the same as Genuine BMW and OEM brands.

BMW Fitments:

3 Series
E90 / E91 / E92 / E93 (06-13) > 325xi
E90 / E91 / E92 / E93 (06-13) > 328xi
E90 / E91 / E92 / E93 (06-13) > 330xi
E90 / E91 / E92 / E93 (06-13) > 335xi
5 Series
E60 / E61 (04-10) > 525xi N52 (2006-2007)
E60 / E61 (04-10) > 528xi
E60 / E61 (04-10) > 530xi N52 (2006-2007)
E60 / E61 (04-10) > 535xi
E60 / E61 (04-10) > 545i
6 Series
E63 / E64 (04-10) > 645Ci
7 Series
E65 / E66 (02-08) > 745Li
E65 / E66 (02-08) > 745i
X1 Series
E84 X1 (2013-2015) > X1 28i xDrive
E84 X1 (2013-2015) > X1 35i xDrive