Securing the propeller shaft on the rear axle differential

NOTE: RISK OF DAMAGE
Damage to the prop shaft during installation.
Non-observance of the installation guidelines for the prop 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.

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

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Remove recessed nut (1).

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Clean all residue from the recessed collar (1) of the twelve-edge flange nut, the gearing on the bevel drive pinion (2) and the taper (3) and de-grease them.

Top up the collar insert (1) with grease.

CONSUMABLE DESCRIPTION

Lubricating grease	50 g,	83230417754
Optitemp HT 1 LF	Tube

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Replace recessed nut (1), seal and retaining ring (2).
Parts: Recessed nut, seal, 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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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.
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Clear away adhesive residue from the thread (1) of the flange and clean.
Clean gearing (2).

Grease gearing (2).

CONSUMABLE DESCRIPTION

Lubricating grease	50 g,	83230417754
Optitemp HT 1 LF	Tube

Loosen the luggage strap (2) from the prop shaft (1).

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Push the prop shaft (1) in arrow direction against the recessed nut (2) up to the stop.
Manually screw the recessed nut (2) at least two threads onto the prop shaft (1) and tighten it.

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Position central mount (1).
Position the center mount (1) with the designation TOP at the top in the transmission tunnel.

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Screw in the screws (1) by a few turns.
Variant with a wide universal joint:
Secure the propeller shaft from twisting with a suitable tool (2) on the center universal joint.

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

TIGHTENING TORQUES SPECIFICATION

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

After the propeller shaft is installed and the recessed nut is screwed in, strictly observe a hardening time of minimum 3 hours.
During this time the vehicle must not be moved or pushed!

Tighten down screws (1).

TIGHTENING TORQUES SPECIFICATION

Central mount to body
M8	Tightening torque	19 Nm

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