Join Date: Dec 2005
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Hello and welcome to the forum.
It certaintly sounds like your battery is past it's sell by date.If it is the original battery,it's had 3 years use,so it's done quite well.
I'd have a new one fitted,and get the garage to check for 'drain off'.This will determine if there is any thing draining the battery excessively when the car is not in use(up to 0.3 Amps is acceptable).
Hope this helps.
I'd rather push my Alfa than drive a BMW....
Currently in Lagdti's garage:
2004 Saab 9-5 HOT Aero and a 2001 Audi A3 1.8 Turbo