27 10 020 Installing exchange transfer box (ATC 35L)

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required

IMPORTANT: Before and after replacement, execute the "Repair" service function with the BMW diagnosis system.

Recycling:

Catch and dispose of escaping transmission oil. Observe country-specific waste disposal regulations

Necessary preliminary tasks:

DRAIN OIL at oil drain plug
Tightening torque 27 10 2AZ.
Remove TRANSFER BOX

Modify following parts:

Covers and protective caps
Drive shaft transportation retainer
Vent hose of transfer box
Holder for exhaust system on transmission cross-member

Mount special tools 22 1 042 / 22 1 041 on transfer box.

Pull out rubber mount with thrust plate 22 1 043 by means of spindle 33 4 460 and nut 22 1 017.

Fig 1: Mounting Special Tools 22 1 042/22 1 041 On Transfer Case

Bolt special tool 22 1 044 to transfer box.

Insert special tool 22 1 045 with bolt into recesses of rubber mount.

Draw in rubber mount with special tool 33 4 460.

Installation note:

Pay attention to installation position of rubber mount.

Coat housing bore and rubber mount with Circolight, refer to BMW Parts Department.

Fig 2: Installing Rubber Mount For Transmission Mounting (AWD)

IMPORTANT:

After completing work, check transmission oil level and top up if necessary.

Release filler plug (1).

Check oil level.

Tightening torque 27 10 2AZ .

Pour in transmission oil up to lower edge of opening for filler plug (1).

Use only the APPROVED OIL .

Failure to comply with this requirement will result in serious damage to the transfer box!

Fig 3: Identifying Filler Plug

Courtesy of BMW OF NORTH AMERICA, INC.