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dakarch
07-19-2007, 12:38 PM
I have a 1999 C230. I went to add a little r134 to it the other day and ran into an odd problem.

I have a set of 134 manifold gages. I believe I correctly located the high and low pressure access points (low on the back of the compressor and high under the grille by the evaporator).

I would expect these connections to be standard for r134; however, the low pressure side (back of compressor) is smaller than my low pressure manifold coupler and the high pressure side is bigger than my manifold.

Do I need a special tool/adapter?