[s-cars] Remote not opening - help please!

[Tony Curran]

I have a 96 S6 so have the two button wireless remote fob. The remote will
lock the car but the open button doesn't work. Further invstigation shows
the open function is working, tested by touching the contacts with wire on
the bare circuit board. BUT when properly assembled, the metal pad isn't
being forced down sufficiently to make contact when the rubber button is
depressed. Could I just place something between metal thingy and rubber pad
toassist in creating enough pressure to force metal thingy to cloce contact
on the circuit board?
 
Any other ideas how to fix this? New battery has been fitted. Thanks. 
 
Tony
96 S6