Date registered: Sep 2004
Vehicle: 1985 500SEC, 1991 190E 2.6.
Location: Los Angeles / Hannover Germany
Mentioned: 11 Post(s)
Quoted: 958 Post(s)
Sounds like a issue with the vacuum actuators behind the dash, a rip in the lines, or the easy to access cental unit under the passenger side dash. Sometimes you can hear air escaping. I am not sure whether the oline manual mbbraingears.com has anything relating to your car, but the vent system of some of the others listed should be similar. It might be a good idea to repost on the forum for your car (I think it's the R-129 forum you need to scroll down to), and also use their 'search this forum' function on the top right of the page.
Last edited by Teutone; 07-21-2006 at 11:06 PM.