BMW 7 Series: Removing And Installing/Renewing USB Interface Connecting Socket

Necessary preliminary work:

• Remove SWITCH FOR FRONT PASSENGER AIRBAG DEACTIVATION

NOTE: Open glove box

Disconnect plug connection (1).

Unlock retaining clips (2) on left/right.

Press out USB interface connecting socket (3) in direction of arrow.

Installation note: Retaining clips (2) must not be damaged.

Make sure USB interface connecting socket (3) is correctly seated.

Fig. 175: Pressing Out USB Interface Connecting Socket

REMOVING AND INSTALLING/REPLACING POWER DISTRIBUTION BOX IN PASSENGER COMPARTMENT

WARNING: Observe SAFETY INSTRUCTIONS for handling vehicle battery.

Necessary preliminary work

• Disconnect NEGATIVE BATTERY CABLE
• Remove both battery cables at F03
• Remove RIGHT GLOVE BOX WITH HOUSING

Release screw (4).

Unlock clamps (5) and remove power distribution box in passenger compartment (2) in direction of arrow.

Disconnect plug connections at the back.

Fig. 176: Removing Power Distribution Box In Passenger Compartment

Replacement: Remove JUNCTION BOX ELECTRONICS (3).

Remove fuses.

REPAIRING AIRBAG CABLES

IMPORTANT: Only repair those cables which show visible signs of damage. In the event of visible damage, make sure there is only one cable repair in effect after the repair work. If no visible damage can be identified, the entire cable must be replaced. When carrying out repairs to the airbag wiring harness, you must use the spare parts offered in the Electronic Parts Catalogue (EPC).

Safety regulations

Safety regulations for HANDLING COMPONENTS OF AIRBAG SYSTEM.

INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY.

Procedure for cable repair

In event of non-visible damage to wiring harness

Disconnect plug connection on airbag module or on adapter plug. It is absolutely vital to disconnect the contacts in succession as there is a risk of them being mixed up! Cut through one cable after the other at an appropriate position, do not under any circumstances cut through both cables at the same time. Insulate cables remaining in wiring harness with insulating tape. Now disconnect plug connection on airbag control unit. Unpin contacts. Cut through one cable after the other at an appropriate position and insulate with insulating tape, do not under any circumstances cut through both cables at the same time. Pin contacts of repair cable for airbag control unit in control unit plug, assignment of repair cables is relevant. Lay repair cable in car parallel to existing airbag lead.

Now pin in contacts for airbag control unit or contacts of adapter plug, assignment of repair cables is relevant.

Cut off excess length of repair cable in proximity (visible area) of airbag module or of adapter plug. Twist open cables. With the connectors and shrink-fit hoses in the Electronic Parts Catalogue (EPC), reconnect the cables with the same cable colors. Twist cables again, open length (twist) must not exceed 40 mm. Secure interface (shrink-fit hoses) with insulating tape to prevent cables from twisting open.

Instructions for cutting off, insulating, crimping cables, installing and removing contacts:

• CUTTING OFF AND INSULATING CABLES
• REPAIRING A PLUG CONNECTION USING CONNECTORS
• INSTALLING AND REMOVING CONTACTS

In event of visible damage

Expose cable at damaged areas. Cut through one cable after the other at an appropriate position and insulate cables no longer required in wiring harness with insulating tape, do not under any circumstances cut through both cables at the same time. Now, depending on the scope of work, unpin contacts either on airbag control unit/airbag module or on adapter plug. Cut off unpinned cables. Insulate cables remaining in wiring harness with insulating tape. Now pin in contacts of repair cable, assignment of repair cables is relevant. Lay repair lead in car parallel to existing airbag lead up to cutting point. Cut off excess length of repair lead. Twist open cables.

Connect cables with connectors and shrink-fit hoses in Electronic Parts Catalogue (EPC), assignment of repair cables is relevant. Twist cables again, open length (twist) must not exceed 40 mm. Secure interface (shrink-fit hoses) with insulating tape to prevent cables from twisting open.

Instructions for cutting off, insulating, crimping cables, installing and removing contacts:

• CUTTING OFF AND INSULATING CABLES
• REPAIRING A PLUG CONNECTION USING CONNECTORS
• INSTALLING AND REMOVING CONTACTS

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