BMW 7 Series: Transceiver, Handset+Support, Card Reader

REMOVING AND INSTALLING/REPLACING TELEMATIC CONTROL UNIT (TCU) (SA633/SA639)

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

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

Necessary preliminary tasks

• Clamp off BATTERY NEGATIVE LEAD
• Remove LEFT LUGGAGE COMPARTMENT WHEEL ARCH TRIM
• Partially remove wheel arch panel left at F10

Unscrew nuts (1).

Release screw (2).

Remove TCU holder (3) in direction of arrow.

Fig. 7: Removing TCU Holder

Unlock plug connections (1) and disconnect.

Unfasten aerial plug (2) and disconnect.

Release all nuts.

Remove TCU (3) from holder (4).

Installation: Observe color coding of aerial plugs (2).

Fig. 8: Identifying Plug Connections, Aerial Plug With TCU And Holder

Replacement

• Carry out VEHICLE PROGRAMMING/ENCODING

REMOVING AND INSTALLING/REPLACING HANDS-FREE MICROPHONE, DRIVER'S SIDE

Lever out microphone cover (1) at front in direction of arrow.

Disconnect plug connection underneath and remove microphone cover (1).

Fig. 9: Removing Microphone Cover

Unlock retaining lug (1) and feed out hands-free microphone (2) in direction of arrow.

Installation note: Arrow on hands-free microphone (2) points in direction of travel.

Fig. 10: Removing Hands-Free Microphone

IMPORTANT: Disconnecting the plug connection for the handsfree microphone or emergency call button results in fault memory entries in the telephone control unit (limitation in the emergency call system).

After fitting, read out fault memory and if necessary delete entries.

REMOVING AND INSTALLING/REPLACING HANDS-FREE MICROPHONE, PASSENGER SIDE

Operation is described in:

Removing HANDS-FREE MICROPHONE, DRIVER'S SIDE

READ NEXT: