Audi Repair: Audi 6 1997 quattro avant, tricky job, audi 6

Question
Coolant is loosing from some place under, been told is the heater core, expensive to repair ?

How can I get to the battery ?? is on the rear seat ?

Just bought it, with no owners manual, where can I buy one cheap ??

Finally, the rear Audi emblem is missing any ideas besides de dealer.

Thanks !!

Answer
The ehater core is a tricky job, it is unde rthe dash.  Is the water coming into the passenger compartment or outside?  The battery on your car I think is either in front of the winshield under the hood or under the rear seat, I have a 2001 and it's under a cover under the hood.  I would suggest ebay for a manual and the audi emblem...  Let me know,  Jan