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Home >> BMW >> 2013 >> 740Lxi >> Repair and Diagnosis >> External Pages >> Different car >> Section 1019 (Transfer Case - Repair -- F31) >> Transfer Case, General >> 27 00 270 Change transfer box oil (ATC 35L)

27 00 270 Change transfer box oil (ATC 35L)

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Special tools required: 

IMPORTANT: Use only the APPROVED TRANSMISSION OIL in the transfer box.
Failure to comply with this requirement will result in serious damage to the transfer box!
NOTE: Only change oil when transfer box is at normal operating temperature.

Necessary preliminary tasks: 

Place oil collecting apparatus underneath.

Drain and dispose of the transmission oil using the transmission breather (2).

NOTE: Do not drain transmission oil through the oil filler plug because complete emptying cannot be guaranteed using the oil filler plug!
Fig 1: Identifying Transmission Breather
G09877014Courtesy of BMW OF NORTH AMERICA, INC.

Install TRANSFER BOX .

Undo oil filler plug (1).

Tightening torque 27 10 2AZ .

Use special tool 00 2 080 to top the transmission oil up to the lower edge of the filler screw opening.

Installation note: 

Renew oil filler plug with O-ring.

Fig 2: Identifying Oil Filler Plug
G09877015Courtesy of BMW OF NORTH AMERICA, INC.