Hi all After recently changing rear lock mechanism on our 1998 A6 2.5 Tdi (after original failed and the boot wouldn't open) the central locking for the boot wont work anymore i.e Wont lock or unlock with remote makes no sound of wanting too stuck etc...like it's not getting the signal. For info it's an electric system and not air so it can't be a broken air pipe! I have tried all combinations with the key in the boot lock as explained in the handbook,disconnected battery to reset ecu,to no avail! This once happened on an old Audi of our's (air system) which then started working again about a year later, any help much appreciated as I'm well baffled!!! and would like to sort it before our Hols in July as we now prone to forgetting to manually lock the boot with the key!