2004 beetle, left rear break light is dim when breaking and goes off when lights are on and breaking
wrong bubl or bad earth
I would check the ground wire (earth). It sounds like the power is back feeding when the lights are off.
Ditto, and I might add corrosion in socket. And it's Brake light. I am not the spelling police, just for future reference friend.
thanks, wish i could blame spelling on predictive type
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