84 10 810 Removing and installing (replacing) Telematic Communication Box

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2015 BMW 750i, 2015 BMW 750Li, and 2015 BMW 740i. 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) .

Comply with notes and instructions on HANDLING OPTICAL FIBERS .

Necessary preliminary work:

Clamp off BATTERY NEGATIVE LEAD .
Remove LEFT LUGGAGE COMPARTMENT WHEEL ARCH PANEL .

Unscrew nuts (1).

Tightening torque: 6.0 Nm

Release screw (2).

Tightening torque: 6.0 Nm

Remove holder and Telematic Communication Box (3) in direction of arrow.

Fig 1: Removing TCU Holder

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Graphic similar

Unlock and disconnect all plug connections in area (1).

Release all nuts (2).

Tightening torque: 3.3 Nm

Remove Telematic Communication Box (3) from holder.

Installation note:

Note color coding of plug connection.

Fig 2: Identifying Telematic Communication Box, Connectors, And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: When replacing the TCB, check whether the faulty TCB is equipped with an EMERGENCY BATTERY :

if no , then the new part is installed without an emergency battery !
if yes , then the new part should be equipped with a new emergency battery (ordered separately, TCB is supplied without an emergency battery!)

Replacement:

Carry out VEHICLE PROGRAMMING/ENCODING .