Build date after 03/07

Disconnect plug connection (1).

Turn lock (2) in counterclockwise direction.

Remove socket housing for rear light (3) from rear light (4).

Fig 1: Identifying Plug Connection And Socket Housing For Rear Light

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Check the socket on the socket housing (1) and socket housing (2) for damage (erosion, charring).

Replace the damaged socket housing (1) with new part (part number 7 361 881 or 7 361 882).

Replace the damaged socket housing (2) and tab connector contact with new part (part number 7 505 477 and part number 7 502 933).

Note the pin assignment and unpin the tab connector contact from the socket housing (2) with special tool 61 0 321 (release tool).

See notes for OPENING PLUG HOUSINGS AND REMOVING CONTACTS OF DIFFERENT PLUG SYSTEMS

Replace the discolored tab connector contacts (see BMW Electronic Parts Catalogue) and pin in the new socket housing (2) according to the noted pin assignment.

See SPECIAL TOOLS FOR WIRING HARNESS REPAIRS .

Fig 2: Identifying Socket Housings

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Close plug connection on socket housing.

On left rear light:

Route the additional ground cable (1) along the present rear light wiring harness (2) and secure it with insulating tape.

On right rear light:

Route the additional ground cable (1) along the present rear light wiring harness (2) and secure it with insulating tape. Also secure the rear light wiring harness (2) to the main wiring harness with cable straps.

Fig 3: Routing Additional Ground Cable Along Present Rear Light Wiring Harness

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Insert the additional ground cable (1) on a free pin in the comb connector (2).

Installation note: 

Ensure correct locking of additional ground cable (1) in the comb connector (2).

Fig 4: Inserting Additional Ground Cable In Free Pin Of Comb Connector

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Installation: 

• Modify bulbs, replace if necessary