26 11 000 Removing and Installing Complete Propeller Shaft (Constant-Velocity Joint)

26 11 000 Removing And Installing Complete Propeller Shaft (Constant-Velocity Joint)







IMPORTANT:
Rear axle differential M3 (S65) is balanced.
Therefore the following points must be observed with the M3.
Non-compliance can lead to humming noises.

NOTE: For all other vehicle types continue with the required preliminary work.







M3 vehicles with marked rear axle final drive on outside of drive flange (colour dot)(1):
- white dot (1): no measures required
- blue dot (1): Measures absolutely required
- yellow dot (1): Measures absolutely required

IMPORTANT:
If a measure is required, the rear axle final drive must be identified before the screw connection based on the following instructions.

There are two systems for the screw connection on drive flange of the rear axle final drive.
System A:
- Colour coding (2) in interior cone of the drive flange.
System B:
- NO colour coding (2) in interior cone of drive flange.







The colour dots on the exterior of the drive flange are assigned to the respective bolting point and mean that the corresponding measure must be installed here.







System A:
- Yellow mark (1) - install green shiny bolt (2)
- Blue mark (1) - install black bolt (2)







System B:
- Blue mark (1) - black washer (2) between screw head and shim
- Yellow mark (1) - silver washer (2) between screw head and shim
- Washer: refer to Electronic Parts Catalogue MG 26







IMPORTANT:
- With four-wheel drive and on renewal only:
according to installation with BMW diagnosis and information system under control unit function
Perform function check of transfer box (calibration)







Necessary preliminary tasks:
- Remove rear underbody protection
- Remove complete exhaust system
- Remove heat shields







IMPORTANT:
To avoid buzzing sound after refitting the propeller shaft:
1. The flexible disc connection (1) on the front at the propeller shaft must be marked in one plane with the flexible disc (2) and the three-bolt flange (3) before removal.
2. During installation the three-bolt flange (3) must be forced back together again with the flexible disc (2) in the same position.







Release screws.
Installation note:
ZNS bolts and nuts must be replaced.
Replace self-locking nuts.

Tightening torque, 26 11 1AZ.







Release screws.
Replace screws and shims.







With a screwdriver, press constant-velocity joint (at the disassembly grooves) off input flange.







IMPORTANT:
Do not let propeller shaft fall into joints.
Joints and rubber sleeve on constant-velocity joint can be damaged.







Hold down propeller shaft on centre mount (1) and release screws.
Tightening torque, 26 11 6AZ.







Bend propeller shaft downwards on centre bearing.
Remove propeller shaft from transmission output flange and remove constant-velocity joint from rear axle differential.







Installation note:
Pull out constant velocity joint (1), up to limit position.
Install shim.
Attach propeller shaft with constant-velocity joint pulled apart to drive flange of rear axle differential.

Alternately tighten 2 opposing screws to draw constant-velocity joint evenly into the input flange.
Replace ZNS bolts and shims.
Tightening torque, 26 11 4AZ.







Installation note:
Check centring mount (4).

Replace damaged centring mount.
Grease centring mount.
Grease, refer to BMW Service Operating Fluids.

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