my brake lights was staying on after locking the car a3 tdi 2005 also when driving on motorway sometimes go into limp mode no warnings on dash nothing . anyway so i change airmass and air filter thinking this is the cause . so i give it a bit of wellie . then turbo blows loads of smoke oil warning on dash holly crap i have murderd my car . turns out brake switch tells the brake servo to stop the turbo when you brake . so the brake switch is faulty iam giving it power and the servo is thinking iam braking bang goes the turbo any1 ever here of this. how crazzy is that
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