Yossarian

    As I pulled the car out of the garage this morning, the coolant light went on in the trip computer. I immediately turned off the car (and haven't turned it back on since) and popped the hood. The resevoir barely had anything left in it. I didn't have time to really look it over, but I think I saw lots of drip marks on the heatshield below it, and the sensor. There's also what appears to be some very small stress cracks in one side of it. There was liquid on the garage floor, but I didn't have time to check if it was water (AC condensation) or coolant. I didn't smell coolant, but I figure that's probably what it is.

    The car has 55k miles on it. The last time I checked the fluids was about 3 weeks ago, and a couple weeks before that I had moved the reservoir around while changing the spark plugs.

    Think it's just a leaky hose/sensor connection? Should I replace the reservoir? (I'm think yes) How common is it for these things to bust?

VerrÜckt

Common and yes, replace it. Get the A4 V-6 tank...half the price.

Yossarian

Thanks for the tip on the A4 one!

NoFHoes

you should research the aux pump failure and find the source of the leak

Yossarian

The drip stains I saw were directly under the coolant reservoir....

NoFHoes

Looks like you have the resevoir issue to fix then.

S4_Cinci (I S'edTFA)

info, just search using my username and expansion tank for my prior posting info. Good luck!