I have just picked up a 2009 q5 with 340,000km on it.
its in great shape and runs well.
-Amp dead, how do I get it out to replace?
-Steering is like driving with no power, is it done or can I adjust it somehow?
-rides as stiff as a go-kart! can I change that?
340,000 km?! That is a lot of miles, glad to know they hold up strong. If your ride is too stiff probably the shocks are worn at this mileage. Get some new shocks and springs and change the bushings while at it. They are probably shot. Check the power steering fluid and check for problems by mechanic. There are many things that can go wrong to cause the heavy steering. Only professionals can give you a thought on it.