Necessary preliminary tasks:
NOTE: The propeller shaft is balanced.
The front and rear propeller shafts must be reassembled in the same position.
Detach gaiter (1) from groove (2).
Mark front propeller shaft (3) and rear propeller shaft (4) in one plane.
Pull apart propeller shaft.
Installation note: If necessary, insert new clamping ring (1) into front propeller shaft (2).
Release gaiter (1) with screwdriver from groove (2) and pull off over longitudinal splines.
Installation note: Apply an even coating of grease to longitudinal splines on shaft.
Observe markings and force front propeller shaft onto longitudinal splines (markings must be flush).
Push gaiter (1) during installation into groove (2) and make sure it is firmly fitted.
BMW X3 Owners Manual > Parking brake: Automatic Hold
The concept
This system assists the driver by automatically
setting and releasing the brake, such as when
moving in stop-and-go traffic.
The vehicle is automatically held in place when
it is stationary.
On inclines, the system prevents the vehicle
from rolling backward when driving off.
...