Tekk

So I plan on buying a used RS4 within the next month or so as there are some amazing deals to be had on the used market.

That being said, I've noticed a number of posts recently regarding the carbon build up on the valves and Im wondering if I should specifically ask dealerships (if I buy one from a dealer) to check that before I purchase? It also seems that some folks suffer more than others...any reasoning for this? Are there any preventative steps that can be taken to lessen the build up?

Im also looking at longer term reliability due to the build up. Would the extended warranty / CPO coverage protect from any damage the build might cause?

Is there anything else I should consider when looking at a used RS4? Anything in particular to watch out for that I can visually spot or test for?

Thanks all for any information you can provide. Im very much looking forward to owning a small piece of audi prestige

Parikh1234

how handy are you? I think STALKIN RS4 has a nice used RS4 for sale

Tekk

Definitely willing to learn more of course.

STALKIN RS4

Nothing a little polish won't fix.

Tekk

Sorry to hear about the car :-/

Parikh1234

i think that car is perfect then, just make sure you factor in the cost of a service manual

Tekk

Excellent! Thanks for the incredibly insightful reply :-P

Miwa

Make sure you have a whole case of duct tape!

STALKIN RS4

the carbon build up is from the direct injection, and I don't there is much you can do about it. But def have the dealer take a look or have the car inspected at a independent shop you trust, thats what I do. If the dealer won't let you, then move on to the next car.
With Audi, I find its more hit and miss with reliability then with BMW IMO.
Good luck.

BluDemon

DRC Suspension Sucks..... but other than that the car is pretty solid