As an aside to sorting the door locks - have fitted the biggest new battery I could - a Hankook MF32-750 from BatterymagaUK - off the bayofe. It just fits perfectly into the battery tray and is a 12v 115AH 750cc unit - and didn't think it was bad at £84.95 with free postage (and arrived next day). Before I fitted it I was getting some random strange behaviour from the EAS - ie, dropping at corners, soft fault on the dash which would disappear on restarting - and when plugging in the eas software it wasn't coming up with any fault (apart from usual 'vehicle has moved) - but since fitting the big battery it's all been fine - so assume that the eas system certainly doesn't approve of a weakening battery.

The MF range of batteries are good. I have the MF31-750 and a MF31-1000 in mine. Been going solid for the last 4 years!