Yet another coolant leak... (w/ big pics)

[DBA4_1.8t]

Hello everyone,
My car has been losing coolant ever since I changed the timing belt/thermo/waterpump this summer, and I wasn't able to locate the problem until today. The leak is coming from the thermostat area, and has built up in underneath the intake manifold. I did the install exactly as the DIY on the forum said, and I'm pretty sure everything is torqued correctly, however I am not confident that I flushed/bled the coolant properly. Judging the photos I've included, what do you guys think is the problem?

The hose coming from my thermostat.


Underneath the manifold.




The bleeder screw, but nothing has really built up here.


The buildup around my fuel injectors.

Any advice would be great!

[dirtybrd]

Its leaking from the bleeder and running down. As it sits it starts turning into a crust.

[Redgoat]

did you use a new crush washer after opening the bleeder?

[DBA4_1.8t]

I didn't use a new crush washer, actually didn't even think to. What would explain the leak around the hose coming from the top of the thermostat?

[zbrock06]

do you need a new washer after opening the bleeder, i replaced my TB and flange and now i ahve a leak and i have no fucking clue where to even look i'm starting to get sick of this car, please help!! my next idea would be the t-stat, i do'nt see how my coolant flange couldn't last only a month. I opened the bleeder but didn't replace the washer.

[eurogruppe]

mine was leaking from the bleeder a month ago, took it to the dealership and fixed it for free, as well as refilling my coolant to the proper level.

[A4SoftWalker]

Did you check here Other coolant post Its under the intake manifold too.