Driveshaft Flex Disc (Guibo), BMW - E9X M3, M5/M6, X3M/X4M, X5M/X6M

The M3/M5/M6 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.

Fits with 6MT, SMG, or DCT driveshafts. Note that on some models there are two of these flex discs - one at either end of the driveshaft. This part number replaces previous BMW part number 26112282573.

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.

While not required, we also recommend replacing the 6 self-locking nuts at the same time, especially if they have been removed/installed multiple times already.

Install note: the flex disc is 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 is a Genuine BMW driveshaft flex disc with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.

BMW Fitments:

3 Series
E90 / E91 / E92 / E93 (06-13) > M3
5 Series
E60 / E61 (04-10) > M5
5 Series
F10 / F11 (11-16) > M5 (2013-2016)
5 Series
F90 (2018+) > M5 (2018+)
6 Series
E63 / E64 (04-10) > M6
6 Series
F12 / F13 (12-18) > M6
X3 Series
F97 X3M (2020+) > X3M
X4 Series
F98 X4M (2020+) > X4M
X5 Series
F85 X5 M (2015-2018) > X5 M
X6 Series
F86 X6 M (2015-2019) > X6 M