BMW 7 Series: Removing And Installing/Replacing Control Unit/Module For Left Or Right Seat Adjustment (Rear Comfort Seat)

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

Necessary preliminary work:

• Disconnect BATTERY EARTH LEAD
• Remove THE CENTRE ARMREST FOR THE REAR SEAT BACKREST COMPLETELY

NOTE: For purposes of clarity, the following operations are shown in the released state.

Detach cover (1) from Velcro fastener.

Pull cover (1) upwards out of guide from four-bar lever.

Fig. 318: Pulling Guide Cover From Four-Bar Lever

NOTE: For purposes of clarity, graphic shows backrest removed: Unlock and disconnect all plug connections in marked area.

Installation note: Plug connections are coded against incorrect assembly.

Fig. 319: Disconnecting Plug Connections In Marked Area

Press control unit against spring and remove towards top.

NOTE: If the rear Comfort seat is defective: Partially remove the backrest for the seat on the left or right.

Necessary preliminary work

Remove LEFT OR RIGHT REAR SEAT Release screw (1).

Installation note:

Replace screw (1).

Tightening torque 52 25 05AZ.

Fig. 320: Identifying Screw

Unscrew nuts (1).

Carefully raise the seat frame (2) in the direction of arrow.

Installation note: Replace nuts (1).

Tightening torque 52 25 05AZ.

Fig. 321: Raising Seat Frame

Unlock plug connections (1) and disconnect.

Press control unit against spring and feed out.

Fig. 322: Identifying Seat Frame With Plug Connections

Installation note: Make sure mounting (1) and retaining tabs (2) of control unit (3) are correctly seated.

Fig. 323: Identifying Control Unit With Mount And Retaining Tabs

Replacement:

Carry out vehicle PROGRAMMING/ENCODING.

REMOVING AND INSTALLING/REPLACING FOOTWELL MODULE

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

Necessary preliminary work

• Disconnect BATTERY EARTH LEAD
• Remove both battery earth leads at F03
• Remove FOOTWELL SIDE TRIM PANEL ON A-PILLAR, LEFT

Disconnect connector connections (1) and (3).

Release nuts (2) and remove footwell module (4).

Tightening torque 61 35 4AZ.

Fig. 324: Identifying Footwell Module With Connector Connections And Nuts

Replacement:

Carry out VEHICLE PROGRAMMING/ENCODING.

REMOVING AND INSTALLING/REPLACING INTERIOR AERIAL FOR COMFORT ACCESS SYSTEM ON LEFT OR RIGHT (LUGGAGE COMPARTMENT, SIDE)

Necessary preliminary work:

• Remove LUGGAGE COMPARTMENT FLOOR TRIM PANEL

Disconnect plug connection (1).

Unclip interior aerial for Comfort Access System (2) and remove.

Installation note:

Make sure interior aerial for Comfort Access System (2) is correctly seated in designated holder.

Fig. 325: Identifying Interior Aerial For Comfort Access System With Plug Connection

REMOVING AND INSTALLING/REPLACING INTERIOR AERIAL/ANTENNA FOR COMFORT ACCESS SYSTEM (FRONT CENTER CONSOLE)

Necessary preliminary tasks:

• Remove FRONT STORAGE COMPARTMENT

Disconnect plug connection (1).

Unlock and remove interior aerial for comfort access system (2) from holder (3).

Installation:

Make sure interior aerial for comfort access system (2) is correctly seated in designated holder (3).

Fig. 326: Identifying Interior Aerial For Comfort Access System With Plug Connection And Holder (61 35 953)

REMOVING AND INSTALLING/REPLACING INTERIOR ANTENNA FOR COMFORT ACCESS SYSTEM (REAR CENTER CONSOLE)

Necessary preliminary tasks:

• Remove REAR CENTRE CONSOLE TRIM

Disconnect plug connection (1).

Release screw (2) and remove interior aerial for comfort access system (3).

Fig. 327: Identifying Interior Aerial For Comfort Access System With Plug Connection And Holder (61 35 954)

REMOVING AND INSTALLING/REPLACING REAR PARCEL ANTENNA FOR COMFORT ACCESS SYSTEM

Necessary preliminary work:

• Remove TRIM PANEL FOR STORAGE SHELF.

Disconnect plug connection (1).

Release screw (2) and remove rear parcel shelf aerial for comfort access system (3).

Fig. 328: Identifying Rear Parcel Shelf Aerial For Comfort Access System With Screw And Plug Connection

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