21 52 510 Removing and installing or replacing clutch slave cylinder

WARNING: This page is about a different variant/trim than selected.

NOTE: After completing work bleed CLUTCH HYDRAULIC SYSTEM .

IMPORTANT: From 08.06 a plastic CLUTCH SLAVE CYLINDER is installed in the E81, E87 and E9X.
Important notes on installation are described in this work step.

Seal supply hose to clutch master cylinder with special tool 13 3 010 TERMINAL .

NOTE: Illustration shows E46.

Fig 1: Sealing Hose To Clutch Master Cylinder Using Special Tool (13 3 010)

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Remove transmission underbody protection if necessary.

Release union screw (1) on hydraulic line.

Release nut (2) and remove hydraulic line (3) with bracket.

Installation:

Tightening torque 21 52 1AZ .

NOTE: Illustration similar.

Version with throttle valve, tightening torque 21 52 12AZ .

Fig 2: Identifying Hydraulic Line With Screw And Nut

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Release nut and remove clutch slave cylinder.

Installation:

Tightening torque 21 52 5AZ .

IMPORTANT: N47 with H-transmission only
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 3: Locating Clutch Slave Cylinder Screw

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Installation

Clean thrust member (1) and contact face on release lever (2).

Lightly grease thrust member (1) on contact face (3).

Fig 4: Identifying Thrust Member And Contact Face On Release Lever

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IMPORTANT: Spacer between fuel line and pressure hose of clutch slave cylinder must be correctly fitted.

Fig 5: Identifying Spacer Between Fuel Line And Pressure Hose Of Clutch Slave Cylinder

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