26 11 000 Removing and installing propeller shaft (inserted) completely: Installation

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IMPORTANT: To avoid buzzing sound after refitting the propeller shaft:

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.
During installation the three-bolt flange (3) must be forced back together again with the flexible disc (2) in the same position.
Replace ZNS bolts and self-locking nuts.

Fig 1: Refitting Propeller Shaft
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Release screws.

Installation note:

Replace ZNS bolts and self-locking nuts.
Grip mounting bolts of flexible disc at nuts and tighten down by way of bolts.

Fig 2: Locating ZNS Bolts And Self-Locking Nuts

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Installation:

Check centering mount.

If necessary, replace damaged centering mount .

Grease centering mount.

Grease: BMW Service Operating Fluids. See PROPELLER SHAFT - OPERATING FLUIDS .

Fig 3: Locating Centering Mount

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Installation:

Tighten down screws/bolts.

Secure special tool angle of rotation 00 9 120 with magnet 00 9 130 to underbody and continue bolting according to angle of rotation.

Tightening torque, see 26 11 1AZ in PROPELLER SHAFT

Fig 4: Tightening Underbody Bolts

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Slacken screws (1)

Tightening torque, see 26 11 6AZ .

Using a suitable tool (2), secure propeller shaft at center universal joint against turning.

Remove screws of center mount fully only after opening insert nut.

Fig 5: Securing Propeller Shaft Using Suitable Tool

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IMPORTANT: Check installation location.
Part number and date of manufacture must be visible from below.

Installation:

The bolt fastening points of the center bearing are off-center.

Part (A) of the propeller shaft center bearing must be installed upwards into the propeller shaft tunnel.

Fig 6: Identifying Propeller Shaft Part Number

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IMPORTANT: The bihexagonal flange nut must not be used for bracing.

Failure to comply with this instruction may result in serious damage to the rear differential.

Release insert nut against direction of travel in clockwise direction with special tools 33 5 040 and 33 5 070 .

Tightening torque, see 26 11 1AZ in PROPELLER SHAFT ASSEMBLY .

Fig 7: Releasing Insert Nut Using Special Tool

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Remove retaining clip (1) and seal (2).

Installation:

Retaining clip and seal must be replaced.

Fig 8: Identifying Propeller Shaft Retaining Clip And Seal Location

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Remove insert nut (1).

Installation:

Insert nut must be replaced.

Fig 9: Identifying Insert Nut

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Before installing propeller shaft:

Clean insert collar (1) on flange nut and spline teeth on bevel pinion (2).

Fill insert collar (1) with grease.

Grease: BMW Service Operating Fluids. See PROPELLER SHAFT - OPERATING FLUIDS .

Fig 10: Identifying Insert Collar And Bevel Pinion

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Clean thread (1) of joint hub to remove adhesive residues.

Clean hub teeth (2), then coat with grease.

Grease: BMW Service Operating Fluids. See PROPELLER SHAFT - OPERATING FLUIDS .

IMPORTANT: Thread of joint hub must not be fouled with grease.

Fig 11: Identifying Hub Teeth And Thread

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Place insert nut (1) with seal in insert collar of flange nut.

Install retaining clip (2).

Fig 12: Identifying Insert Nut And Retaining Clip

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IMPORTANT: Adhere without fail to installation and screw-fastening sequence.

Installation sequence:

Join propeller shaft to transmission
Join propeller shaft to rear differential
Join center mount

Screw-fastening sequence:

Insert nut
Flexible disc to transmission
Centre mount

IMPORTANT: The bihexagonal flange nut (2) must not be used for bracing.

Failure to comply with this instruction may result in serious damage to the rear differential.

Insert nut must be screwed into place within 5 minutes .

Slide propeller shaft (1) as far as it will go onto insert nut and secure.

Secure propeller shaft at center universal joint against turning with a tire iron.

Tightening torque, see 26 11 1AZ in PROPELLER SHAFT ASSEMBLY .

Fig 13: Identifying Propeller Shaft And Bihexagonal Flange Nut

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