So I took the g/f to the station this AM in her mk3 (05 and just 25k) and returned, parked up and locked/alarmed as normal. She's just gone to go the gym and neither fob unlocked the car, the key had to be used to open the door and there is nothing at all on turning the ignition key. No lights, noise, nada.Any ideas? Immobiliser? Surely not the battery, all ok to completely gone in 12hrs? Any help appreciated.
R
PS.
I don't have volt meters and stuff....