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Re: Audi a3 rear brake light fault
The dealer can fix this or any mechanic with a vag com interface, basically its a matter of programing the tailgate lights (both of them) to work as brake lights. the euro speck enables one of the other or both, same goes for the backup light. if you had a module replaced recently this could be the reason for the change, whoever installed it should be able to rectify this for you.
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You didn't mention the obvious, fuses. In many euro cars there are multiple fuses for each light circuit, side to side, and inside to outside, so check fuses, even if it looks good, they can still be bad. Switch with same amp and color fuse with any other same specs to narrow it down. Fuses can be tricky believe it or not, and I can't tell you how many times people overlook the obvious, even mechanics.
depending on country,most golf DO NOT have 2 rear foglights,this is not to confuse the driver behind thinking they are your brake lights,the one that works is fitted/wired to the offside.it still has a bulb holder though........the fronts have a fuse for both(when fitted)
hi check behind the light assembly itself could be its not earthing out due to corrosion your mounting screws are your earthing point it only takes water getting in behind to cause this hope this helps
Check the brake light switch (aka the stop light switch). I'm not familiar w/ Audi, but most cars have the switch located on the upper portion of the brake pedal, with an electric plug in connection. I couldn't find a listing for info on the a3, only the a4 and 6 for that year . That switch is approx. $40. Hope this helps. Good luck.
take the bulb back out have someone sit in car apply brake get your self a circuit tester and check to see if this circuit is carrying efficient 12 volt current! some times in cold weather these bulbs get hot with long period of breaking and when released condensate and rust begins and you get what you have perhaps bad socket! this would be a ideal location to begin and probably end,
are the rear lights combined? ie sidelamp and brake lamp in one bulb .if so, there is a possibility that the bulb is not sitting correctly in the holder , causing both the side & brake lamp fuses to blow . if they are seperate bulbs you probably have ashort in the sidelamp system somewhere but the brakes could be a switch problem [easy check, find switch ,disconnect wires short across using wire or paperclip switch on ignition and check lights ] if they work the switch is the problem , [check fuse first] if they don't
Most likely. It sits on the front of the gearbox and has 2 wires going into it. Remove the plug and bridge the wires with a small piece of insulated wire. Turn ignition on. If lights are on change the switch Cheers John