Installing the complete propeller shaft

NOTE: RISK OF DAMAGE
Damage to the propeller shaft during installation .
Non-observance of the installation guidelines for the propeller shaft on the rear axle differential may cause severe damage .

Always replace the recessed nut on the rear axle differential. Screw lock must be available.
Strictly observe a minimum hardening time of three hours after having screwed in the recessed nut. The hardening time may be longer at lower temperatures.

Observe following installation sequence:
- Position propeller shaft on transmission.
- Position the propeller shaft at the rear axle differential.
- Position central mount.
Observe the following screwing sequence:
- recessed nut
- Flexible disc to transmission
- Central mount
Check the centering (arrow) for damage and replace if necessary.

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Apply a thin coat of grease to the soft centering (1), if necessary.

CONSUMABLE SPECIFICATION

Lubricating grease Olistamoly 2 LN 584 LO

100 g, Tube

83 19 0 447 919

Do not grease the hard centering (2).

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Clean the recessed collar (1) of the twelve-edge flange nut and the gearing on the bevel drive pinion (2) of all residues and degrease.
Top up the collar insert (1) with grease.
CONSUMABLE SPECIFICATION

Lubricating grease Optitemp HT 1 LF 50 g, Tube 83230417754

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Use thread file (1) to remove any adhesive residue on the thread.
The thread pitch must be correct!

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NOTE:
RISK OF DAMAGE
Damage to the output flange .
Failure to observe the greasing specifications may lead to damage on the output flange .
- Do not contaminate the thread of the output flange with grease.
Clean adhesive residue from the thread (1) of the propeller shaft hub.
Clean hub gearing (2) and taper (3).

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It is essential to grease the hub gearing (2) and the taper (3).
CONSUMABLE SPECIFICATION

Lubricating grease Optitemp HT 1 LF 50 g, Tube 83230417754
Replace the seal, recessed nut (1) and retaining ring (2).
Parts: Seal, recessed nut, retaining ring
Insert the recessed nut (1) with the seal into the recessed collar of the twelve-edge flange nut.
Mount retaining ring (2).

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Assemble three-hole flange (3) again in the same position with flexible disc (2) to prevent a humming noise in the drivetrain after reinstalling the propeller shaft.
Replace ZNS screws and self-locking nuts (1).
Parts: ZNS screws, self-locking nuts

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Position the screws and nuts (arrows).

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Push the propeller shaft (1) in arrow direction against the recessed nut (2) up to the stop.
Unscrew the recessed nut (2) by at least 2 threads manually on the propeller shaft (1) and fasten it.

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Central mount with the TOPPING designation:
Central mount (1) must be installed with the designation TOPPING at the top in the transmission tunnel.

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Position central mount.
Position screws (1).

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Variant with a narrow universal joint:
Secure the propeller shaft (1) from twisting with the special tool 2 464 898 and a suitable tool (2) on the center universal joint.

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Variant with a wide universal joint:
Secure the propeller shaft from twisting with a suitable tool (2) and on the center universal joint.

Do not tighten the screws (1) until the propeller shaft is completely screwed in place.

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NOTE:
RISK OF DAMAGE
Damage to the flange nut .
Failure to observe the installation specifications may lead to serious damage to the flange nut and the rear axle differential .
- Do not use the twelve-edge flange nut as counter support.
- Screw in the recessed nut within 5 minutes.
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Secure juncture shaft against turning at center universal joint with a suitable tool.

Screw in the recessed nut counterclockwise in the arrow direction with special tools 0 495 554 (33 5 070) and 0 496 959 (33 0 080) .

The recessed nut must be screwed in within 5 min.

TIGHTENING TORQUES SPECIFICATION

Propeller shaft to rear axle differential
recessed nut Replace recessed nut.	tightening torque	100 Nm

Hold down mounting bolts of the flexible disc on the nut and tighten via the screw.

TIGHTENING TORQUES SPECIFICATION

Front flexible disc to propeller shaft
M12 Replace screws. Joining torque and angle rotation must be adhered to. Tightening via screw.	Joining torque	55 Nm
	Angle of rotation	90°

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Secure the special tool 0 490 504 (00 9 120) with the special tool 0 495 108 (00 9 130) on the vehicle underbody and continue to screw it in according to the angle of rotation.
Tighten down screws (1).

TIGHTENING TORQUES SPECIFICATION

Central mount to body
M8	Tightening torque	19 Nm

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Follow-up work

Refer to INSTALLING THE CONNECTING SUPPORTS ON THE TUNNEL .
Refer to INSTALLING THE HEAT SHIELDS .
Refer to INSTALLING EXHAUST SYSTEM .
Refer to INSTALLING THE LEFT AND RIGHT REAR DIFFUSER .
Refer to INSTALLING THE RIGHT REAR TENSION STRUT .
Refer to INSTALLING THE UNDERSHIELD (TANK COVER) AT RIGHT .