IMPORTANT: Before beginning work, fully press the brake pedal several times to reduce the vacuum pressure in the brake servo. This makes it easier to remove the vacuum hose.
Vacuum hose and non-return valve are welded together and are replaced together as a single unit.
Necessary preliminary tasks:
Pull off partition wall seal upper part (1) in direction of arrow.
Remove non-return valve (2) from brake servo.
Installation note: Check gasket for non-return valve and replace if necessary.
Unclip vacuum line (1) from line clip (2).
Unlock snap fastener (3) and detach vacuum line.
BMW X3 Service & Repair Manual > Driveline+Axles: Specified grease
GREASE FOR PROPELLER SHAFT (FLEXIBLE COUPLING (RUBBER DOUGHNUT) CENTER
BEARING AND SPLINE END)
Use one of the following greases for greasing the propeller shaft center bearing or locating pin of the
transmission output flange and the splines of the propeller shaft spline end.
GREASE FOR PROPELLE ...