Safe to say this is main rad leak?

[jining]

Have had a pretty good coolant leak and couldn't find the source, seems aux radiator are OK, but today I took the bottom tray off and noticed coolant around the front of the tray. Looking at where the front tray meets the bottom of the radiator it's all moist with coolant, safe to say this is the radiator without tearing it apart? I want to get one on order before I tear if apart more.
Here's a pic: https://imgur.com/NJNIxvW

Thanks

[VinnysS4]

What's that sticking through that? It's hard to say what is leaking .... but it only takes like 10 minutes to remove the bumper to check. That's time we'll spent if you ask me. Our radiators are some of the easiest out there to change imho

[2004B6S4]

you're looking at coolant sitting on top of the front of the belly pan? I don't think you can assume anything from that, it could be dripping from anywhere onto the belly pan and then making it's way to the front. I'd put it in service position, run the engine till it starts leaking, then try to find where it's coming from

[jining]

It's a lot of coolant sitting literally right under the radiator, not the belly pan, that was off, its the plastic piece under the radiator that the splash shield fastens to in the front. All hoses look ok, and so do both aux rads when I checked them last week hunting for this leak. I was doing UCA's today when I noticed this, I should have taken the bumper off.. oh well, I'm a gambling man, ordering a b7 OES radiator from JHM. Thanks guys.

[Terry.Reese]

I am going to link my discussion on my radiator, they put some replacement ones in there with part numbers, they are all mainly under 300.00, it is my next fix after I find out why I am hemorrhaging oil from what looks to be the back of my engine.

http://www.audizine.com/forum/showth...air-or-replace

Mainly

http://genuineaudiparts.com/parts/20...iagram=1397880

#1 - "AH" for 6Sp, "AJ" for Tip