Hope everyone’s been doing well. I haven’t visited in some time!
I’ve had a mystery coolant leak for a while now, and while I saw a little bit of buildup on the water pump and thermostat, there wasn’t really enough to make sense - my overflow reservoir will drain over the course of a couple of weeks. Enough to be obnoxious, but not enough to prevent you from actually driving the car. Since I moved into my new house, the S6 has been sitting just because I’ve been focused on the house.
But interestingly enough, I looked down the other day and saw a puddle of coolant under the rear axle 
Anyone know off the top of their head what lines are back there? All the stuff I’ve seen in the Bentley manual is in the front of the car, so I was very surprised. I’ll have to pore over the manual again. Pic below.
