21 52 510 Removing and installing/replacing clutch slave cylinder (plastic): Installation

Replace self-locking nuts.

Tightening torque 21 52 5AZ .

Clutch slave cylinder must not rest at the side on the transmission.

Failure to comply with this instruction may result in leaks at the clutch slave cylinder.

Fig 1: Identifying Clutch Slave Cylinder With Holder

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Unlock spring retainer (1).

Disconnect hydraulic line (2).

Fig 2: Identifying Hydraulic Line And Spring Retainer

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Press cylinder together by hand.

Connect hydraulic line with cylinder pressed.

Fig 3: Pressing Cylinder

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Remove special tool 13 3 010 .

Hold cylinder piston vertically downwards.

Press piston 5 times into cylinder.

Fig 4: Holding Cylinder Piston

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Installation: 

Check pressure hose for traces of abrasion.

If no traces of abrasion by the propeller shaft can be detected on the pressure hose:

The pressure hose must be bent approx. 30 mm away from the propeller shaft.

If traces of abrasion by the propeller shaft can be detected on the pressure hose:

The pressure hose must be replaced.

After replacement, the clutch hydraulics must be BLED .

Press in piston until it engages.

Install clutch slave cylinder.

Bleed CLUTCH HYDRAULICS .

Clean thrust member (1) and contact face on release lever.

Lightly grease thrust member (1) on contact face (2).

Fig 1: Pressing Piston

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