My antifeeeze keeps leaking out and I was told that I had a hole in my coolant flange, so when I was calling to see how much it would be to get fixed no one knew what I was talking about. I am a woman and I have no idea what I am talking about. I know some things but not this.
So what I want to know is, what is the real name for it. Is it the coolant flange or the water pump?
I have an '03 VW Passat 1.8T. I know it sits behind the engine.
tl;dr: it's really called a coolant flange.
I had also never heard of a coolant flange but it turns out that it's a real part and, based on the video, it's a part that fails around 120K miles (which sounds reasonable for the age of your vehicle.
An example of a coolant flange repair.
Some examples of coolant flanges (which seem to be common for Audis and VWs) can be found by searching the shopping side of Google.
I tend to agree with the position in the video that you should probably purchase VW parts for the coolant side (considering that the engine needs coolant to live and it's under pressure for much of its life).
It's called a coolant flange. Not totally familiar your your engine but there is usually two of them mounted to the engine. They are made out of plastic and are prone to cracking. I had to replace one last year on my Golf.
As the others have said, be sure to get an OEM part since this is not very expensive and the OEM part should last a lot longer than a cheap part.
