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Home >> BMW >> 2018 >> 440i 2D Convertible >> Repair and Diagnosis >> Drivelines & Axles >> Driveshaft & Universal Joints >> Propeller Shaft - Repair (F32, F33 & F36) >> 26 11 Propeller Shaft, One-Part Or Multi-Part >> Removing and installing complete propeller shaft (inserted - flexible disc at rear) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)

Removing and installing complete propeller shaft (inserted - flexible disc at rear) (4' Series Coupe/Convertible, 4' Series Gran Coupe Sedan)

Special tools required 

IMPORTANT: On four-wheel drive vehicles with defective, non-engaging drive, it is imperative that the following information is taken account of.
IMPORTANT: The three-hole flange to the rear axle differential is balanced with the flexible disc and propeller shaft.
Three-hole flange, flexible disc and propeller shaft may not  be disassembled.
The propeller shaft may only  be released at the sunk nut at the rear.
The recessed nut must be opened in clockwise direction  .
Replacement of the sunk nut on the rear axle differential is mandatory! 
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: In order to avoid a humming noise of the drivetrain after reinstalling 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 screw and self-locking nuts.
G11106992Courtesy of BMW OF NORTH AMERICA, INC.

Loosen screws.

G11106993Courtesy of BMW OF NORTH AMERICA, INC.

Slacken screws (1)

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

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

G11106994Courtesy 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.
IMPORTANT: The sunk nut must be opened clockwise - see direction of arrow  .
Turning the recessed nut in counter-clockwise direction will automatically tighten the recessed nut further and significantly damage the bi-hexagonal flange nut.
G12822228Courtesy of BMW OF NORTH AMERICA, INC.

If the insert collar of the flange nut was damaged, the propeller shaft can no longer  be secured using a new sunk nut and the rear axle differential must be replaced.

Release sunk nut clockwise with special tools  33 5 070 and  33 0 080.

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

G11106996Courtesy of BMW OF NORTH AMERICA, INC.

Remove insert nut (1).

G11106997Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Check centring.

If necessary, replace damaged CENTRING BEARING .

Grease front centring bearing.

G11106998Courtesy of BMW OF NORTH AMERICA, INC.

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

Top up insert collar (1) with grease.

Grease: Refer to PROPELLER SHAFT - OPERATING FLUIDS

G11106999Courtesy 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 PROPELLER SHAFT - OPERATING FLUIDS

IMPORTANT: Thread of joint hub must not  be fouled with grease.
G12822233Courtesy of BMW OF NORTH AMERICA, INC.

Part:  Replace gasket, sunk nut (1) and retaining clip (2).

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

Install retaining clamp (2).

G11107001Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Adhere without fail to the installation and bolt-tightening sequence.
Installation sequence:
  1. Attach propeller shaft to transmission,
  2. Attach propeller shaft to rear axle differential.
  3. Attach center mount.

Screw-fastening sequence:
  1. Recessed nut,
  2. Flexible disc to transmission,
  3. Center mount.
IMPORTANT: In order to avoid a humming noise of the drivetrain after reinstalling the propeller shaft:
  • During installation the three-bolt flange (3) must be forced back together again with the flexible disc (2) on the marked plane.

Parts:  Replace ZNS screws and self-locking nuts.

G11106992Courtesy of BMW OF NORTH AMERICA, INC.

Mount new screws and nuts.

G11106993Courtesy of BMW OF NORTH AMERICA, INC.

Push on propeller shaft (1) up to the limit position on the recessed nut.

Screw recessed nut (2) min. 2 threads manually onto propeller shaft (1) and tighten.

G12822237Courtesy of BMW OF NORTH AMERICA, INC.

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

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.
Screw in recessed nut counter-clockwise, see direction of arrow  , with special tools 33 5 070 and 33 0 080.
The sunk nut must be screwed into place within 5 minutes  .

Tightening torque 26 11 6AZ .

G12822238Courtesy of BMW OF NORTH AMERICA, INC.

Brace mounting bolts of flexible disc on nut and tighten by screw.

Parts:  Replace mounting bolts and nuts.

Tightening torque 26 11 1AZ .

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,

G11107007Courtesy of BMW OF NORTH AMERICA, INC.

Tighten down screws (1).

Tightening torque 26 11 5AZ .

G11106994Courtesy of BMW OF NORTH AMERICA, INC.

Required follow-up work: 

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