Hi all, I have a 2002 A6 quattro that has been stood for a few months. The battery was off for most of that time, and now when I've gone to start it it spins nicely and sounds like it's trying a bit, but nothing more.

It's been stood due to a failed waterpump and has lost coolant too. It was starting and driving perfectly before being parked and did not significantly overheat.
Oh yea the epc light has come on too.
Any thoughts appreciated.
Ta.