Oh boy, here we go. Coolant leak that pressure test won't find. 202

[Will_w202]

I had a trans service at dealer and they said they noticed a coolant leak, small, but couldn't find source. Did a pressure test. I noticed some kind of leak that seemed like just water collecting in belly pan the week prior. Had some white crustiness on the main radiator hose, but they should have been able to detect if it was the source.

Surely it's not the head gasket. It was done under warranty at 80k/2 and a half years ago. Car now has 159k. Say it isn't so....