TomInNeedham

I want to report this works unbelieveably well. What a snap. The trick is keeping it all in the bucket! Thanks, Tom

Ahsai

The compressed air purge method?

TomInNeedham

Yes indeed. It was the most fun I've had working on this car to date. I may have had it at 14lbs...it "GUSHED" as you said. Maybe some air in the pipes yes...which is probably why you said 10lbs, but regardless it worked great. Perfect.

Ahsai

Glad it worked for you. Yea, you only need a few PSI. In fact, I only used a rubber flap on my air hose outlet and used my hand to press the rubber flap against the reservoir neck. I modulated the pressure by leaving the rubber flap not completely sealed. Really no need to have the system air tight when adding air to purge the coolant.

sds911

Mercedes coolant flush was 110 at dealer and double at the Porsche dealer.