i have a 1994 c280. everything worls fine on the car for the most part. The only issue I have is the temperature control. I can make the temp cooler and warmer but it seems there is a delay when doing it. It just seems like when I change the temp (increase or decrease lets say by 10 degrees) it should be almost instantaneous??? Vacuum issues? where should I look for related issues?

thanks

__________________
1994 C280
2009 VW Tiguan
1993 Toyota X-tra Cab SE-5


1973 220D ... Gone, but not forgotten
1991 Alfa Romeo 164L Gone, wife MADE me forget it

2006 Hyundai Tucson... just straight out FORGOTTEN!