Buying a used A6....what should I most look out for?
go for it, 4.2 engines are one of their best engines.
So beware, this sucker has 16 balljoints and tierod ends apparently aren't too robust either.
Check the wheels for bent/out of round and tires for bulges, cuts, etc.
You want four wheels of the approximate same tread depth or four new tires. Figure 165 each plus mounting and balancing for Dunlop SP9000 tires (Tire Rack).



