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Just driven the B5 Rs4 for the first time in a couple of weeks and with the the loverly sunshine had the sunroof open.

The car will now no longer lock via the central locking, nor function the elec windows or sunroof. I have checked the obvious fuses and all seems ok. VAGCOM will not return any reading from the central locking module, but why are the elec windows all affected...

Any suggestions more than welcomed.....

Had the battery gone flat during that time? If so you'll need to reset the one-touch on the windows.