Wondering why i cant get the heat down on the floor of my 300te wagon?

 

Are we talking about the foot well vents? I have heat on the drivers side foot well but no heat on passenger side UNLESS while heater is on I push upward thru the passenger foot well vent with a writing pen (Bic).


This opens the flap and it stays open, maybe a day or two, I'm thinking I have a weak vac pod (leaky diaphragm) or a crack in the vac. line. I'm going to wedge the flap open as the labor cost to remove the dash to replace pods is 7hr.

Try the Bic and let us know. Smedley

 

I read that if you take out the glove box, there is a manifold of about seven vacuum lines. Test each one of those lines with like a Mityvac and see if they hold vacuum. If not, it's a bad pod (related to that line) as was mentioned and the whoring job of getting to it by removing the dash.

It goes without saying that if you do have to remove the dash, replace or rebuild (some are rebuildable) all the pods whether they test out or not.

Kevin

 

Hey guys, I have 99 c280 sport, and I have similar problem. Heater doesn't blow to the feet. However, overall it's working excelent. any suggestions on maybe buttons combination or what could be the problem to fix it?
Thank you guys in advance!
Max

 

Smedley, I can not see the flap in the vent (foot wells). Which way do you push the bic pen to open it? From bottom of the vent and push it upwards?

 

Does this vaccum leak effect the central locking system not working? I hear some noise behind the glove box when ignition is on.

 

I got it. I wedged the flaps on both side. When I have time, I will check for vaccum leaks. At least my feet wont freeze in this winter