TMC.

I've been smelling coolant for a while and tracked it down to the overflow tank. I also had a bad purge valve and Alarm module. While in the process of tearing everything down, when I removed the intake plenum, it looked like coolant was spraying all over.
The car has been parked for about a month, so I don't know if this is a current leak or perhaps something fixed at one point in the car's history.
I'm in the process of removing the rear firewall facade to replace the alarm module, and I intend to take a look look at the glued water pipes.
From what you can see here, where would you start on the front of the engine?
2011 CTT

AnAlbumCover

stick your camera below the throttle body and it'll be able to see the glued pipes. your angle is just off.

TMC.

The small pipe on the left has some movement when I wiggle it. Is this normal? (still looking for my inspection cam)

AnAlbumCover

no idea which pipe you're talking about but if its the one of the two coolant hoses that go into the thermostat housing thats under the TB then the answer is no. they shouldn't wobble.

twodollardoug

I have a DIY that shows you where all the potential leaks are and how to fix them. I didn't have any leaks at the time of the DIY. I did the work to be preemptive.

TMC.

Thanks, I'll look into a few.
I had a Grad party yesterday, so I didn't get back to it, but I'm going to go out and finish pulling the firewall in a few minutes and try to get a better look at the front two pipes.
My coolant tank, for sure, was leaking onto the strut; I was a little surprised, to say the least when I saw all that dried coolant. I'm at 117,000 miles. The 30,000 I've put on it under my ownership has been primarily trouble-free, but I wouldn't doubt I could use some preventive maintenance on top of everything I had planned for this weekend.

RAudi Driver

Leaks at the front of the engine: Water pump and front coolant lines, possibly.

Leaks at the rear of the engine: everything else that's in the valley.

TMC.

Found it.
Little plastic line.
Now while I'm in there... I may as well start making a parts list, huh?

The little plastic line broke off as I tried to dissconet it. It was already loose and seeping coolant.





$16.00 line, $3000 in labor (or some ungodly number)