2005 Boxster Rear Left Brake Light Welcome › Forums › Tech Forum › 2005 Boxster Rear Left Brake Light Tagged: Faulty Brake LIghts This topic contains 0 replies, has 1 voice, and was last updated by TomArndt 3 years, 7 months ago. Viewing 1 post (of 1 total) Author Posts September 10, 2014 at 3:13 pm #7634 TomArndtParticipant Suggestions on how to address a faulty rear left brake light are welcome. The bulb has been replaced multiple times. The rear left tail light works as do the center and right brake lights. Note this vehicle uses a single bulb with two filaments. One filament is for the ‘tail light’ the second filament is for the ‘brake light’. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.