Help Please, Vent Problems - PeachParts Mercedes-Benz Forum

JEREMYC · #1 08-17-2006, 09:21 PM

Hey folks, I'm sitting in my car with my laptop right now combing through all of the previous posts I found using the search button. I went through and checked everything and it appears my vacuum pods, doors and everything is working OK. I still get a decent amount of air coming from my defrost vents when the A/C is on. I can not seem to find which vacuum pod opens or closes the defrost vents. I have my glove box out and have pretty good access to allot of stuff. My air is cold, just would be allot nicer if I could get all of the cold air to blow out of the center vents and not the defrost vents. Please gimme some pointers here (I'm sweating my a$$ off)

Mismost · #2 08-17-2006, 11:23 PM

All your vac pods are not working well...your center pod is not working the flap for the center vents. You can reach up & up, and over behind the center vent and feel the pod. To get to it seems to require removing the dash.

There was a recent thread that went over this same thing.

Low dash air flow

redassag00 · #3 08-17-2006, 11:30 PM

remove the driver side knee bolster panel, you'll see a vac pod there. push it closed and see if you get air. I did and it worked, so I zip tied it as a temporary fix.

JEREMYC · #4 08-18-2006, 09:07 AM

Quote:

Originally Posted by redassag00

remove the driver side knee bolster panel, you'll see a vac pod there. push it closed and see if you get air. I did and it worked, so I zip tied it as a temporary fix.

All my pods work perfect except the one listed above. I could see my center vent pod working perfectly and closing all the way as well as the recirc door and the main air door. I could click the defrost button and I could just barely see it try to move. I pressed it closed and cut almost all of the air off of the defrost vents! Man does it move air from the center vents now! I used a zip tie to temporarily hold it closed until I can get a new rubber diaphram for it. I did notice that there is 2 vac lines running into the one I zip tied. One had good vacuum and the other really did not have any. So I thought rather than losing vacuum from a busted rubber diaphram, I would tie the two lines together but when I did that, my center vent pod quit working. So I plugged them back to where they go and the center vent started working again. Had nice cold air flow all the way to work this morning. Thanks for the info!