26 11 052 Replacing flexible disc for rear propeller shaft

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Necessary preliminary tasks:

Remove exhaust system . See 18 00 020 REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (N47 D16/20 K/U/O/T 1) .
Remove heat shields.

NOTE: To protect universal joints, tie back propeller shaft in area of center mount.

IMPORTANT: Before removing propeller shaft:
The three-hole flange to the rear axle final drive is balanced with the propeller shaft.
The three-hole flange and the propeller shaft must be reassembled in the same position.
Mark three-hole flange (1), flexible disc (2) and propeller shaft (3) in one plane.

Fig 1: Locating Flange Mark, Flexible Disc And Propeller Shaft

Courtesy of BMW OF NORTH AMERICA, INC.

Release propeller shaft from thee-hole flange and center mount.

Installation note:

Replace ZNS bolts and self-locking nuts.

Tightening torque: 26 11 3/5AZ .

Release screws and remove flexible disc from propeller shaft.

IMPORTANT: Replace ZNS bolts and self-locking nuts.

Tightening torque and angle of rotation 26 11 4AZ .

Fig 2: Locating Self-Locking Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Check centering on three-hole flange.

IMPORTANT: Plastic centering mount must not be greased.

Fig 3: Checking Centering On Three-Hole Flange

Courtesy of BMW OF NORTH AMERICA, INC.