27 10 010 Removing and Installing Transfer Case (ATC 300)

27 10 010 Removing and installing transfer box (ATC 300)

Special tools required:







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







IMPORTANT:
After completing work, check gear oil level and top up if necessary.
Filler plug (1):
Tightening torque 27 00 11AZ.
Transmission oil level up to filler edge of filler plug (1).
Use only the approved transmission oil.

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







Necessary preliminary tasks:
- Remove underbody protection
- Remove centre silencer (N53 only)
- Remove complete exhaust system
- Remove heat shields







Release screws.
Tightening torque 26 11 9AZ.
Remove front propeller shaft at output flange of transfer box and tie to one side.

Installation note:
Replace screws.







- Remove propeller shaft from transmission.
- Release centre mount.
- Tie propeller shaft to one side.

Tasks are described in Removing propeller shaft.







NOTE: Support the transmission with special tools 00 2 030, 23 4 050 .







If necessary
Release screws (1) and remove panel.







Disconnect plugs (1) and (2) from servomotor.







Release screws.
Remove transmission cross member.
Tightening torque 27 00 10AZ.







Release screw connection of transfer box.
Tightening torque 27 00 9AZ.
Remove transfer box.







Installation note:
Pay attention to dowel pin (1).
Grease dowel pin (1).
Apply a thin coat of grease to gearing.
Grease: WEICON ANTI-SEIZE.

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