27 10 700 Removing and Installing / Replacing Control Unit for Transfer Box (ATC 700)

WARNING: This page is about a different car, the 2010 BMW X5, 2009 BMW X5, 2008 BMW X5, and 2007 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Read and comply with notes on protection against electrostatic damage (ESD protection), see61 35... NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE) .

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

Necessary preliminary tasks:

Raise luggage compartment floor trim

Release screws (1).

Remove battery cover (2) towards top.

Fig 1: Identifying Battery Cover And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect connector (1).

Unscrew nuts.

Remove control unit.

Fig 2: Locating Nuts

Courtesy of BMW OF NORTH AMERICA, INC.