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ML320 A/C Low Side Port?

10K views 3 replies 3 participants last post by  00raver 
#1 ·
I was going to recharge my A/C, anyone know where the low side port is located?
 
#3 ·
AC ports...

From what I remember one port near firewall in battery area, the other port right side front of the radiator... took me time to trace and find it, and when I did I said "gee's it's right there"..

Please note on a R134 system it is best to get a shop to evacuate the system, hold pressure at a vacuum, then refill.... a top off will work, but as some of the R134 does turn to water, over time repeated top off's without a evac will lead to a inefficient system..
 
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