23 42 534 Replacing complete hydraulic unit (GS7S47BG SMG)

WARNING: This page is about a different car, the 2010 BMW M5, 2009 BMW M5, 2008 BMW M5, 2007 BMW M5, and 2006 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Before working on hydraulic system:

Reduce pressure in hydraulic system by means of Service Functions in DIS Tester (Replacement and Repair)
Disconnect HYDRAULIC PUMP RELAY in electronics box
Do not reconnect relay for entire duration of repair work

IMPORTANT:

Once the hydraulic unit has been exchanged, venting is not necessary!
Once the hydraulic unit has been exchanged, conduct all service functions (Replacement and Repair) with the BMW Diagnosis System

Necessary preliminary tasks:

Remove TRANSMISSION

IMPORTANT: A green sealing cap acting as a bleed replacement is seated on the tank of the new hydraulic unit.
Detach green sealing cap.
Replace with supplied black sealing cap.

Mount special tool 24 0 200 on transmission.

24 0 202 spindle with thrust piece is not needed.

IMPORTANT: Before mounting on assembly stand 00 1 450, check retaining bridge for secure seating.

Fig 1: Identifying Special Tool (24 0 200)

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Release screw (2).

Tightening torque: 22 Nm

Installation:

Use high-temperature-resistant cable ties (approx. 140°).

If necessary, clean internal thread of screw housing (2).

Insert screw (2) with Loctite 243.

Fig 2: Identifying Internal Thread Of Screw Housing

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Release screw (1).

Tightening torque: 22 Nm

Installation:

If necessary, clean internal thread of housing.

Fig 3: Identifying Screw

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Release screws (1).

Tightening torque: 22 Nm

Installation:

If necessary, clean internal thread of housing.

Fig 4: Identifying Screw

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Release screws.

Tightening torque: 22 Nm

Installation:

Replace screws.

Fig 5: Locating Screws

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Lever actuator block out of housing with a suitable tool (plastic wedge).

IMPORTANT:

Do not lever between actuator block and housing.
Sealing faces can be damaged.
Do not lever on valves (1).

Fig 6: Identifying Valves

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IMPORTANT: Cover transmission with a clean, fluff-free cloth.
Do not allow any dirt or contaminants to get into the transmission.
Clean sealing surfaces.

Installation:

Adapter sleeves (1) must be replaced if they remain in the actuator block during removal.

Fig 7: Identifying Adapter Sleeves