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26 11 000 Removing and installing complete propeller shaft (flexible disc at rear)

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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)
IMPORTANT: Replacement of the sunk nut on the rear axle final drive is absolutely required!

The sunk nut already has a screw locking.

After the propeller shaft has been screwed into the rear axle final drive (sunk nut), a hardening time of at least 2 hours  is absolutely necessary.

The hardening time may be extended at lower temperatures!

Failure to comply with these instructions may cause serious damage!

Necessary preliminary tasks: 

IMPORTANT: Adhere without fail to installation and screw-fastening sequence.
Installation sequence:
  1. Join propeller shaft to transmission
  2. Join propeller shaft to rear axle final drive
  3. Join center mount

Screw-fastening sequence:
  1. Flexible disc to transmission
  2. Three-hole flange on rear axle differential
  3. Centre mount
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.
  3. Replace ZNS bolts and self-locking nuts.
Fig 1: Identifying Flexible Disc, Connection And Three-Bolt Flange
G08470188Courtesy of BMW OF NORTH AMERICA, INC.

If necessary:

Release screws (1).

Remove cover (2).

Fig 2: Identifying Cover And Screws
G08470189Courtesy of BMW OF NORTH AMERICA, INC.

Release screws.

Installation note: 

Fig 3: Locating Flexible Disc Mounting Bolts
G08470190Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Instead of conventional rubber flexible disks, F series also use
aluminium flexible discs, which are also called EGG (constant velocity joints).
Fig 4: Identifying EGG (Constant Velocity Joints)
G08470191Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Check centering mount.

If necessary, replace damaged CENTERING BEARING .

Grease front centering bearing.

Fig 5: Locating Centering Mount
G08470192Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Tighten down screws/bolts to specified torque.

Secure angle of rotation special tool 00 9 120 with magnets 00 9 130 to vehicle underbody and screw down further according to angle of rotation.

Tightening torque: see 1AZ in 26 11 PROPELLER SHAFT, COMPLETE

Fig 6: Measuring Propeller Shaft Securing Angle Using Special Tool (00 9 120) And Magnets (00 9 130)
G08470193Courtesy of BMW OF NORTH AMERICA, INC.

N63 engine.

Release screws (1).

Remove panel (2).

Fig 7: Identifying Propeller Shaft Panel And Screws
G08470194Courtesy of BMW OF NORTH AMERICA, INC.

Slacken screws (1)

Tightening torque: see 5AZ in 26 11 PROPELLER SHAFT, COMPLETE

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 8: Securing Propeller Shaft Using Suitable Tool
G08470195Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

With N53, N54, N55, N57 engines propeller shaft center bearing (1) is identified with the labelling TOP.

Propeller shaft center bearing (1) must be installed with the labelling facing upward in transmission tunnel.

Fig 9: Identifying Labelling TOP On Engines Propeller Shaft Centre Bearing
G08470196Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: The three-hole flange to the rear axle final drive is balanced with the propeller shaft.
Three-hole flange (1), flexible disc (2) and propeller shaft (3) may not be taken apart.
Fig 10: Identifying Propeller Shaft, Flexible Disc And Three-Hole Flange
G08470197Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: The bi-hexagonal flange nut (1) must not be used for counter-hold.
Failure to comply with this instruction may result in serious damage to the rear axle final drive.

Release insert nut against direction of travel in clockwise direction  with special tool 33 5 070 and 33 0 080.

Tightening torque: see 6AZ in 26 11 PROPELLER SHAFT, COMPLETE

Fig 11: Releasing Insert Nut Using Special Tool (33 5 070 And 33 0 080)
G08470198Courtesy of BMW OF NORTH AMERICA, INC.

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

Installation note: 

Retaining clip and gasket must be replaced.

Fig 12: Identifying Retaining Clip And Gasket
G08470199Courtesy of BMW OF NORTH AMERICA, INC.

Remove insert nut (1).

Installation note: 

Insert nut must be replaced.

The sunk nut is equipped with a screw locking.

Prior to the first journey, a minimum hardening time of 2 hours  must be complied with.

Failure to comply with these instructions may cause serious damage!

Fig 13: Identifying Insert Nut
G08470200Courtesy of BMW OF NORTH AMERICA, INC.

Before installing propeller shaft:

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

Fill insert collar (1) with grease.

Grease: refer to BMW SPECIFIED GREASE 

Fig 14: Identifying Insert Collar And Bevel Pinion
G08470201Courtesy of BMW OF NORTH AMERICA, INC.

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

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

Grease: refer to BMW SPECIFIED GREASE 

IMPORTANT: Thread of joint hub must not  be fouled with grease.
Fig 15: Identifying Hub Teeth And Thread
G08470202Courtesy of BMW OF NORTH AMERICA, INC.

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

Install retaining clip (2).

Fig 16: Identifying Retaining Clip And Flange Nut
G08470203Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Adhere without fail to installation and screw-fastening sequence.
Installation sequence:
  1. Join propeller shaft to transmission
  2. Join propeller shaft to rear axle final drive
  3. Join center mount

Screw-fastening sequence:
  1. Insert nut
  2. Flexible disc to transmission
  3. Centre mount
IMPORTANT: The bi-hexagonal flange nut (2) must not be used for bracing  .

Failure to comply with this instruction may result in serious damage to the rear axle final drive.


Insert nut must be screwed into place within 5 minutes  .

Slide propeller shaft (1) to the limit position onto insert nut and secure.

Secure propeller shaft at center universal joint with a suitable tool against turning.

Tightening torque: see 6AZ in 26 11 PROPELLER SHAFT, COMPLETE

Fig 17: Sliding Propeller Shaft Onto Insert Nut
G08470204Courtesy of BMW OF NORTH AMERICA, INC.
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