Hey if anyone can hlep my I would be very grateful. I just bought a 1994 Audi S4 for $15,500 USD. It has a salvaged title (DS rear quarter panel, trunk lid, and bumper.) thats why it was cheap. There was no mention of any engine problems. The other day, after getting on the highway a guy passed me and yelled, "you are burning oil." There is no visible smoke when it starts or while driving. The oil level though, has seemed to go down a little bit.
Any advise??????Expierence??????

You have one or more leaks in your intake path and it is causing the car to run rich. When you try to accelerate hard, it is probably even going into limp mode, in which case, a ton of smoke is going to be pouring out of your tailpipe.

Check your hoses for holes/leaks. They might be obvious, but sometimes you will have to remove the hoses and check. Sometimes, they have simply blown off and can be reattached. Here is where to look:

1. Crossover to Intercooler hose (big hose under bumper cover on driver's side of car) Don't worry if you find oil in this hose, it is supposed to be there. This hose is your most likely candidate.

2. Turbo to Crossover hose (this is the complicated looking hose, which also leads to the bypass valve)

Your leak should be in one of those. However, you need to check your entire intake path, especially since this is a new car to you. So:

3. Manifold to Moisture Trap (This is a small hose behind the black plastic cover on the firewall. This thing ALWAYS blows off. You just need to get a good hose clamp on it.)

4. Check your bypass valve for correct operation. Make sure that it isn't installed backwards.

Those are the biggies. After that, you get into less common problems (endcaps blown off intercooler, cracked crossover or intercooler, etc.).

Congrats on the car. If you have a leak and you can get it fixed, you will have MUCH better performance. I would install a boost gauge, in order to monitor the condition of your car. Also, you will need to learn how to pull codes. You should have a couple now. Go to my site (linked below) and Scott Mockry's site (linked from my site) to learn about the details. Scott's page has a detailed write-up on pulling codes.

You might consider joining the S-Car list at www.s-cars.org. The first S-Car Nationals are in less than a month by the way.

HTH,

Jimmy, I've been geting an error message in your site's main window for a week now. Is it just me or?
Jim K
93S4

my site has always had this problem to one degree or another. It has been bad lately. Just keep banging away on that refresh key. It was especially bad last night.

Sorry,