PeachParts Mercedes-Benz Forum - View Single Post

dpetryk · #3 07-09-2007, 12:12 PM

Absolutely sure about the weights.

I had good air flow over the coils (both of them). Engine fan + aux fan + blower on hi.

Pressures after the removal were about 40-45 low, 225-250 high.

I understand about the sight glass as a gauge for filling, however in my experience they need more. They work better when there is more than the sight glass indicates. I live in Houston and performance is key. I own 5 of these things and they all cool better when there is more than the sight glass shows.

AND - why such a big difference when the bubble go away and the recommended charge? Bubble gone at 1.5 lbs. but the system is rated to have 2.9 lbs.