84 11 660 Removing and installing/replacing telematic control unit (TCU) (option SA633/SA639)

WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Read and comply with notes on protection against electrical damage (ESD PROTECTION) .

NOTE: Comply with notes and instructions on HANDLING OPTICAL FIBRE .

Necessary preliminary tasks

Disconnect BATTERY EARTH CABLE .
Remove SPARE WHEEL WELL TRIM PANEL AT FRONT .

Unfasten aerial connectors (1) and disconnect.

Unlock plug connections (2) and disconnect.

Installation:

Observe colour coding of aerial connectors (1).

Fig 1: Identifying Aerial Connectors And Plug Connections

Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts (1) on left/right.

Remove TCU (2).

Fig 2: Identifying TCU And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Carry out VEHICLE PROGRAMMING/CODING .