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1983 300SD, 1986 560SEL, 1992 300D, 1995 E320 Wagon
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245 Posts
Discussion Starter #1 (Edited)
Most of what I see on here regarding testing vacuum pods, etc just says to go to the Y7 "tree" and test them individually and if they hold pressure they are good, if not they aren't. I have found a couple that don't hold any vacuum. Of the ones that held vacuum, some I could pump up to like 20hg or so and hold. Others that held vacuum I could only pump it up to like 5 hg. My question is, is 5 hg ok?
 

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91 500SL 37k,90 300SE sold, 91 300E sold , 92 300E137k ,02 Kia Sedona ,I know..... its a Mini van.
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8,126 Posts
5?Nope! you have bad pods, after years they just go bad,I had 2 or 3 bad ones,ended up pulling the dash and replacing all, the tubing was all intact as were the rubber elbows. original issue was no center vent A/C, that job was around $175-$200 DIY.
 

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1983 300SD, 1986 560SEL, 1992 300D, 1995 E320 Wagon
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245 Posts
Discussion Starter #5
For those of you out there that see this comment, I posted a long video on how to remove the W124 dash and how to replace the vacuum actuator pods for the climate control.

Just trying to spread the word. Note that there are only 2 PN's left of the 6 PN's that are available from Mercedes or aftermarket. On the dual diaphragm pods you can buy one of the two pods that are available, remove their arms (white plastic just snaps it on), and you can take off the old arm from the old pod and transfer it to the new pod. NOTE: This trick only works on the dual diaphragm pods. Last resort you can get just the rubber diaphragm inside the pod that you can replace at a place called Performance Analysis in Tennessee, although you can't order on their website. You have to call them. Their part numbers for the two different diaphragms are 2010 and 2020. On the W124 and W126, you can use one of their diaphragm on the "center" pod, which is a single diaphragm. They are inexpensive, not sure how long they will be in business from the conversation I had with them. . Get a bunch and store them the rest of your life!
 
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