lusjackson

I have a 1995 c220. I took it to the dealer to fix the problem of the air not blowing from the center vents. The dealer did the following things: replaced the cracked vacum block and replaced switch over valve. I also had them replace the cabin air filter. For about a week no problems with the center vents. Now it takes 30 minutes before the air will blow out.

When its really hot outside (99 degrees plus) it also takes 15 minutes before the car will cool down.

Any suggestions on what the problem may be?

jtc55

uhhhh, sorry dude but wrong forum

lusjackson

Unless you have a answer to my problem don't reply to this thread again!

cfourthree

I am not sure this is the same problem. My center vents and my feet vents in my C43 were not blowing at all. The problem ended up being the vacuum line by the mass air sensor. Fixed immediately.

ob1kenobi

+1

happened to me before and it was bec. the vacuum line was unplugged for
some reason.

Don Coleman

Hey Dude, I'm trying to figure out where is the vacuum block located?

aquinob

Just so you know, this is a 5 year old thread, doubt the folks that originally posted will respond. The vacuum distribution block is underneath the glove box. I think if you remove the underdash panel on the passenger side and look up you should see it. You could also remove the glovebox and get to it that was as well.

Don Coleman

Thanks I appreciate the help

c280fan

I tell you what I had to go through with center vent not working: $ 2000 minimum to fix it at several shops, mercedes included... found the answer on MB forum, took me 20 minutes to fix problem: NEVER MIND TAKING OUT DASH ECT, LOOK AT THE WHITE VACUUM LINE WHEN YOU LIFT THE HOOD, RIGHT ON THE FIREWALL, IT GOES TO THE DISTRIBUTION VALVE UNDER INTAKE MANIFOLD , JUST FOLLOW IT, IT CAME UNHOOKED , I PLUGGED IT IN AND EVERYTHING WORKED AS NEW !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

c280fan

YOU ARE ABSOLUTELY CORRECT! HAD THE SAME PROBLEM, EVERYBODY WANTED TO TAKE DASH OUT, 2000 $ MINIMUM, ALL IT WAS IS THE WHITE VACUUM LINE ON FIREWALL BECAME UNHOOKED, FOLLOW IT UNDER INTAKE MANIFOLD AND PLUG IT IN !!!! EVERYTHING WORKES AGAIN...

W202_NY

could also be the actuator thats broken, which requires dash removal