Think I have figured out why the A/C isn't working on my 87 260E. Vac Pumped it and it held vacuum when I came back 30mins later...but there is bubbling coming from the shrader valve when I began to recharge the system. I managed to get the old one out.

Is this valve something generic I could buy locally or is it MB-Specific?

I just want to double check before I go searching locally.

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
2014 Jeep Wranger Unlimited Sahara - 62k
2003 Gray Mercedes ML350 - 122k