Side Panel:

Remove flap in luggage compartment trim panel. Refer to 51 47 172 REMOVING AND INSTALLING/REPLACING FLAP IN LUGGAGE COMPARTMENT TRIM, LEFT OR RIGHT .

If necessary, fold sound insulation to one side. Refer to 63 21 180 REMOVING AND INSTALLING/REPLACING LEFT OR RIGHT TAIL LIGHT  .

Turn socket housing for rear light to be replaced counterclockwise and remove.

Fig 1: Removing Socket Housing

Courtesy of BMW OF NORTH AMERICA, INC.

Convert bulb, replace if necessary. Refer to 63 99 315 REPLACING LIGHT BULB(S) FOR LEFT OR RIGHT REAR LIGHT  .