Audi a4 keyfob wont start car

[Sammm]

Hi all, some advise needed.

My fob key and spare both wont open / close the car doors / or start the engine - no lights wont make a sound

The key fob has the red light comming up when pressing buttons so not a battery issue with the key. I have tried taking the key out of the fob to lock doors but it wont work.

 

Any idea whats happening does my key need re-progamming or is this possible car issue

[cliffcoggin]

I am not clear if it is just the remote operation of the key that is faulty or if the metal key also does not operate the locks. Assuming you can get into the car, what happens when you switch the ignition on?