63 99 315 Replacing light bulb(s) for left or right rear light

Remove cover (1) from luggage compartment wheel arch trim.

Build date up to 08/2010: 

Turn socket housings (1-3) and pull out of rear light.

1. Socket housing, rear light/brake light
2. Socket housing, direction indicator
3. Socket housing, reversing light

Fig 1: Identifying Socket Housing (Build Date Up To 08/2010)

Courtesy of BMW OF NORTH AMERICA, INC.

Build date from 08/2010: 

Turn socket housing (1-3) and pull out from rear light.

1. Socket housing for rear light
2. Socket housing for brake light
3. Socket housing for turn indicator
Fig 2: Identifying Socket Housings (Build Date From 08/2010)
Courtesy of BMW OF NORTH AMERICA, INC.

Turn bulb (1) in direction of arrow and pull out of socket housing (2).

Installation note: 

Note TYPE OF BULB .

Fig 3: Removing Rear Light Bulb Out Of Socket Housing

Courtesy of BMW OF NORTH AMERICA, INC.