Hi people

Really struggling to figure out whats wrong with my car. I have the 2008 st3 which is the face lift model. in the last couple of days the fob i normally use has started to play up, locking the car as normal then not allowing me to unlock. then all of a sudden working when it wants. I was locked out yesterday so decided to go fetch the spare. this is the same. I,ve swapped over both battery's to brand new ones. parked up outside the house, locked the car walked inside tried unlocking and it wouldn't let me for about 20 mins. they obviously havent lost the programme to work as they do, just when they decide they want to. the car has keyless start so there isnt an ignition barrel as ive read you can programme keys, but i dont think they need to be programmed as they work. not sure if im missing something but if anyone and i mean anyone out there that might have any idea of whats up with it i would be for ever grateful

Thanks

 

No one?