Report: Control Flaps May Fail Due to Leaking Vacuum Manifold for Climate Control Actuator
Mercedes-Benz C230 Problem
The vacuum manifold for the climate control actuator may develop a leak, This can cause poor or no operation of the air delivery and temperature control flaps.
Visitor, 1998 Mercedes-Benz C230, 150,000 mi
when accelerrating air goes to the side vent and returns to the middle after letting go of the gas pedal