300SD (140.134) L6-3.5L DSL Turbo (603.971) (1993)
Center Mounted Brake Lamp Bulb: Service and Repair
Cover (1) on right and left
unclip, clip into place.
Base (2) with bulb
turn 45° to the left, remove, insert, turn 45° to the right.
Bulb (3)
remove, insert.