How to Confirm HG Leak?

[e30rik]

Alright, another update... I added the dye to the expansion tank and I still can't find any external leaks. I even rented the pressure tester again and this time I took the spark plugs out while testing....

[e30rik]

Preparing for the worst but I did drain the oil and it was just oil so we're good there. I ordered the UV dye that was mentioned and I'll see if I can detect a leak that way. As for the heater core, I...

[e30rik]

I put the overflow in a bottle and got nothing.

Temp never goes higher than middle.

The engine is running a bit weird but I guess I should mention It's been sitting for a couple...

[e30rik]

No signs of dried coolant and I feel like with the amount I'm losing an external leak would have been pretty evident with a pressure test but I like the dye idea.



Good point,...

[e30rik]

So my 325is is eating coolant like crazy. I pressure tested the cooling system and couldn’t find any leaks so I’m obviously suspecting the head gasket now. I do get some steam out of the exhaust but...