oil/coolant leak help

[sleepy]

Hey all - My '00 S has started leaving dime-sized spots of oil on the garage floor when left overnight. After finally building up the confidence to climb under the car (i feared rear main failure, and a brief chat with my service advisor revealed that the car was 1.5 months out of CPO warranty, and led to a scolding for using "RMS" as a substitute for "rear main seal," but that's a whole different story...), it turns out that the leak originates from the pass-side rear firewall area.

The oil filler line has been cracked for a while now, but that's only caused visible leaks while refilling after the 2 oil changes I've done, whereas now there is a significant amount of oil everywhere. I don't think its the air/oil separator - a vagcom scan shows no code, theres no unusal smoke on startup, and the AOS is covered in oil residue from top to bottom. But a nearby coolant line (yellow arrows in pics - runs to the oil cooler?) is a little frayed at the quick-connect coupling, and the best story I can think of is that it's spraying coolant when pressurized, and that spray mixed when the oil from the cracked filler is getting everywhere.

questions

- does the spraying coolant theory even make sense?

- the oil filler pipe is the only line carrying oil through that area of the firewall, correct? Are there any other hoses to check for leaks

- any suggestions on other places to check?

thanks

Edited September 25, 2006 by sleepy

[deliriousga]

That coolant line looks more like the "J" tube that goes into the air/oil separator. It looks like the crack in your filler tube is causing the leak like mine did. There's a vacuum on the tube so it can leak even though you are not filling it.