I've googled and searched the forum, and can't find any others reporting this issue. I have a 2014 with 68K miles that leaking AdBule, quite a lot. First started nothing white residue on the garage floor under the muffler. The a couple of week ago, saw white build up on the bottom of the muffler. Got under the car and the crystalized Adbule was on top of the buffer, sway bar and all other the areas around the muffler. Ive made an appt at the dealership, i'll take it in next week. Has anyone else had this problem, it should be covered under the diesel gate warranty?
Thanks

 

Ive dealt with these symptoms. If the DEF heater was replaced under warranty recently at the dealer, its likely that the worlds smallest oring is missing. The oring is smaller than a pinky nail, and goes between the heater and the tank. VW originally diagnosed the same symptoms as a leaking tank, which didnt seam right, as the leak would occur when not moving, not my case. I was able to get under there, remove the muffler, and lower the tank quite easily with extensions.

 

I hadn't had the heater recall performed yet. I also feel like its leaking while drive, it looks like its flowering across the muffler, or it may br excessive leaking...

 

at some point mine was leaking and was covered under the warranty. i don't remember what was replaced, but it was fixed.

 

It’s part of the emissions system it should be covered.

 

Covered. Like forever!