Brake and driving light at the rear left the lower bulb was defective and the tail light was removed. All this is done when the rear flap is opened. Do not try to go over the inner lining. First unscrew the two screws and then with feeling also loosen the left side of the tail light by jerking. It is clicked there and I marked the pen red. In no case somehow go in from the side with a screwdriver and the whole levering as well as in many YouTube video Then unplug the plug. Then remove the black sealing mat and remember the position. Click the lamp holder also over the red circled area. In the case it was the lowest light bulb. Replace and rebuild in reverse order. As said, pay attention to the correct position of the seal. Total construction time 5 minutes