Disclaimer, this is a 2.0L gasser MK4 wagon. Tonight while on some errands my coolant light started blinking. I thought maybe a little pinhole leak had developed, no biggie, but then I smelled the coolant as I lifted the hood. A lot of wet under there with splashes of drops on the plastic engine cover and the area above the transmission really pretty soaked. It was too dark to see where it was coming from but I assumed a burst hose or something. The expansion tank was empty. I elected to try making the 10-minute drive home as it didn't look like anything was gushing/pouring out. As I pulled onto my street, steam was coming from under the hood and my temp gauge had just started to climb.
I will take a look in the morning but based on the location it seems it's the "crack pipe" on the side of the cylinder head. Do you TDI guys have these as well? And can they catastrophically fail like this with no warning? Did the O-ring possibly just blow out? I recall changing it when I first got the car back in around 2012, and I may have done it again 3 years later, so is it possible I'm due for another? 3 years isn't that great for a flange, granted it's plastic...Thanks in advance.
I will take a look in the morning but based on the location it seems it's the "crack pipe" on the side of the cylinder head. Do you TDI guys have these as well? And can they catastrophically fail like this with no warning? Did the O-ring possibly just blow out? I recall changing it when I first got the car back in around 2012, and I may have done it again 3 years later, so is it possible I'm due for another? 3 years isn't that great for a flange, granted it's plastic...Thanks in advance.
