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new beetle cabrio/ driver windows doesnt work. no regulator problem. went to dealer and the computer diagnose was low voltage. all other windows work but the master of 4 windows also fail. there is also a problem with the door that the central lock seems to work occasionally in the middle of driving. but' trying to lock the door fron inside is not possible . somhow it looks like the door lock / power windows and mirror are all connected? the dealer doesnt know what to do. can you solve the problem ?
Hi and welcome to just answer.
This is a common enough problem and am surprised the dealer cannot locate the fault.
what you have is a broken wire within the door wiring harness.
It is normally an earth that breaks that is why you have lost other circuits.
the door panel will have to be removed and the complete wiring harness removed for a bench test.
If you need more help on this then please reply.
there was no proble, with the wiring. it was the computer that controls the central lock / electric windows / mirrors