I wouldn't put aftermarket parts on an Audi, the OEM parts have been engineered to perform to their design specifications, the aftermarket stuff not so much. The reason aftermarket equivalents are cheaper is because they are inferior parts. I wouldn't worry about some shocks/struts that are seeping anyways, wipe them off, close the hood and move on to something else. Adress it when the person who drives it complains about it first.
And I did mention one should always buy an extended warranty with any used car purchase, it sounds like there are many items that you'd like replaced after a more thorough inspection. I hope you bought the warranty. Although minor issues doesn't mean a part failure, most warranty providers will pay for repairs after you've had the car a few months or more. They WILL NOT pay for a bunch of repairs a week after you bought it however, and after that occurs those repairs will be blacklisted forever due to preexisting concerns. In other words, warranty providers will not rebuild a used car you've bought, many people are so upset with this, all they had to do was wait for a few months.
We in the used car reconditioning business always say if you want a car with zero defects that needs nothing, then you have to buy a new one. Used cars are just that, they're used cars and one should expect to find components that have some wear and tear, some seeps here and there, some door dings, maybe some suspension bushings with cracking etc. They're still perfectly safe to drive, but they are used cars. My biggest pet peeve is those who buy a used car with 90,000 miles on the odometer and then complain about how the transmission shifts. When I'm confronted by the used car manager as to why I didn't tell him about the "bad" transmission I always say this: "I road tested it 5 miles, took note of the shift quality, scanned for dtcs for which there were none, it did not bang into reverse or drive, it did not slip in any gear, it shifted through all 8 gears, there is no dipstick but there are no leaks. I don't expect a transmission with 90k to shift like a new one, but it did shift through all gears and drove reasonably well, I don't believe the shift quality poses a reliability concern to whoever will buy the car." and that has satisfied almost everyone I say that to. They quickly decline any further repairs when I tell them even a used LKQ transmission will be about $4000 and may shift worse than the one in the car now LOL.
