Join Date: Dec 2007
Location: Carrboro, North Carolina, USA
Car Year: 2005
Car Model: XS
Still not resolved. I left the car all day at Johnson Subaru in Cary, NC. They didn't find a leak. I left the car all day, again, on Friday, at the same shop. Still, they didn't find a leak.
I agreed (don't know why) to a flush and refill, using Subaru antifreeze and Subaru coolant conditioner (sort of like hair conditioner?). This little bit of work cost US$145!!! (Well, it's about $20 less, but I bought an extra gallon of the Subaru antifreeze to keep in the car and that was $20!) By the way, they drain the system from the thermostat since that is the lowest part of the coolant system.
The mechanic marked the surge tank at the level of the fresh coolant. I drove the car about 76 miles and came back to the shop. The coolant in the surge tank was down, but was still ok in the radiator. He did another pressure check and didn't find anything wrong. He previously checked the surge tank for leaks, but found none.
They asked me to bring it back next week and leave it for a couple days or more (no problem for me).
The car has about 54,000 miles on it and they did make a note that they observed the coolant had leaked out somewhere, but they don't know where, just so I'm covered by the warranty that expires at 60,000 miles.
To Be Continued....
Carrboro, North Carolina, USA