61 35 015 Removing And Installing (Replacing) Control Unit For Car Access System

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 135i, and 2010 BMW 128i. 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).

NOTE: The comfort access system is a radio-based system and can be interfered with by radio waves from other systems (e.g. mobile phone).

Necessary preliminary tasks:

Remove left fresh-air grill . See 64 22 137 REMOVING AND INSTALLING OR REPLACING LEFT FRESH-AIR GRILLE .
Remove trim panel for pedal assembly See 51 45 185 REMOVING AND INSTALLING/REPLACING PANEL FOR PEDALS .

NOTE: For purposes of clarity, the illustration shows the bottom left instrument panel trim removed.

Disconnect plug connection (2).

IMPORTANT:

Carefully disconnect plug connection for ribbon cable (1).

Replace ribbon cable (1) if damaged.

The ribbon cable leads to:

Insert for radio control key
Start/Stop switch

Fig 1: Identifying Ribbon Cable & Plug Connection
Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (3), feed control unit for Car Access System (4) out of holder and remove.

Installation:

Feed guide (1) of control unit for Car Access System (2) correctly into associated mounting.

Fig 2: Identifying Car Access System & Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Carry out vehicle programming/coding.