low pressure port location? on 1991 Mercedes-Benz 420SEL

Hi,

Looking for the low pressure port to recharge the AC, but don't know where it is located under the hood. Would be really helpful if someone can provide a picture to pinpoint the location. Bty, already converted to R134a system.

Thanks in advance.

Asked by for the 1991 Mercedes-Benz 420SEL
Looking for the location of the low pressure port on 1993 Grand Prix
3 answers
ON 1990 IT IS ON THE BIG HOSE ON THE DRIVER'S SIDE ABOUT HALF WAY BACK FROM THE RADIATOR.
A/C IS LOCATE NEAR BY FUSES BOX FRONT DRIVER SIDE IT IS BIG HOSE YOU NOT GONNA MISSES.