just purchased an a8l off ebay beautiful car but has issues i'm new to audi and scared power steering pump has slight howl abs and brake light both lit valve covers leaking can smell oil low rumble maybe front wheel bearing would anyone have a guess into diagnosis of these issues and a guess on cost thankyou so much is this going to be a pig in a poke?

 

You know that if none if this stuff was list on the auction then you can get it paid for by the seller. eBay has a warranty towards people selling lemons and crap cars. but if you can stay away from the stealership everything is an arm and a leg there find a good local shop. you will have to cover the costs up front but you can get reimbursed for the unlisted problems.