<ul><li><a href="http://forums.audiworld.com/s4/msgs/2386793.phtml">Post from B5 S4 forum.</a></li></ul>

of information.

I drove my car for about 30 minutes (not hard) and when I parked I noticed a small leak.
I came back to my car an hour later and there was a huge spot underneath.
I probably lost 2 quarts. I filled up the coolant and I drove for another 30 minutes and parked my car again and there was nothing. Not even a drop.
Any ideas?

in various posts on the B5 S4 forum. On this page I've put a link to a TSB on the aux. coolant pump that seems to be a frequent problem with leaks.<ul><li><a href="http://www.myaudis4.com/info_coolant_leak.htm">Coolant leak info</a></li></ul>

After run coolant pump under the intake, they leak all the time.

<ul><li><a href="http://forums.audiworld.com/s4/msgs/2399874.phtml">http://forums.audiworld.com/s4/msgs/2399874.phtml</a</li></ul>