North American 4L 3.0TDI Q7 Slow Coolant Leak and No Heat

[mmmb00st]

Good Morning, Everyone.

As the title states, I've got an issue. My leak is quite slow, and I've yet to pinpoint it's exact location. I have no codes, but do have Vagcom if there's a procedure that may help diagnose my no heat condition? Curious if there is a "common" part failure on the 4L TDI that others have run into before I spend hours testing and torturing myself.

Thank you in advance!
-Brandon

 

[mattbevans]

If you have no heat you most likely would have a plugged heater core and I bet that the leak is coming from there. Chances are that the clog is causing coolant to back up and leak out of where the connection is for the heater core to the coolant lines. You might want to check and make sure you don't have coolant leaking in the cabin as well.