Join Date: Jan 2007
Nominated 6 Times in 11 Posts
TOTW/F/M Award(s): 5
Thanked 1,649 Times in 1,307 Posts
So when you say "give it 3 mins and it drops back to normal" is this with the engine running ? The clock may be adjusting itself by via the RDS thingymebob on the Satnav.
Sounds to me like your battery is on its way out maybe . The clock normally resets itself when this happens.
Cant explain the three beeps though?
Might be worth getting the battery load tested to see if it is the battery thats on its last legs.
Currently in dave_mezza2006's garage:
2014 Vauxhall Astra Limited Edition 1.4 16v VVT Turbo