Vibration Damper Shaft Seal

Special tools and workshop equipment required

Removing

-- Remove the noise insulation. Refer to Removal and Installation .

-- Remove the right noise insulation -arrows-.

Fig 1: Identifying Right Drive Axle Heat Shield

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-- Remove the frame for the noise insulation. Refer to Removal and Installation .

-- Remove the bolts -arrows-.

Fig 2: Air Guide Pipe And Bolts

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-- Lift the clamps -1 and 2- and remove the air guide pipe.

CAUTION:

Risk of destroying due to reversed running direction on a used ribbed belt.

Before removing ribbed belt, marking running direction with chalk or felt-tip pen for reinstallation later.

-- To release ribbed belt tension, rotate tensioner in direction of -arrow-.

Fig 3: Rotating Tensioner

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-- Secure tensioner with T10060 A.

-- Remove ribbed belt from vibration damper ribbed belt pulley.

CAUTION:

The engine could be destroyed.

In order not to change the valve timing, the crankshaft must not be moved out of the "TDC" position when the vibration damper is removed.

-- Rotate the vibration damper using the T10355 into the "TDC" position -arrow-.

Fig 4: Identifying Vibration Damper Rotated Into "OT" Position Using Counter Hold Tool T10355

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The notch on the vibration damper must line up with the arrow marking on the timing chain lower cover.

-- Remove vibration damper bolt using T10355.

-- Remove the vibration damper and attach the T10368.

Fig 5: Identifying Vibration Damper Bolt And Thrust Piece T10368

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-- Remove the shaft seal with the T20143/2.

Installing

For the correct tightening specifications, refer to RIBBED BELT DRIVE OVERVIEW .

-- Clean the running and sealing surface.

-- Remove the T10368.

-- Pull the sealing ring -arrow- using the T10354 and the vibration damper bolt in all the way.

Fig 6: Identifying Thrust Piece T10354

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NOTE:

Replace the vibration damper bolt.

Replace the O-ring.

Installation is carried out in the reverse order while noting the following:

-- Install vibration damper. Refer to VIBRATION DAMPER .

-- Install the ribbed belt. Refer to RIBBED BELT .