What was the problem with my Mercedes W203 heater?
Problem was with heater only blowing very cold or very hot air and auto climate control would not work too. Found problem by messing about with heater when drivers door was opened and it worked,but as soon as i shut the door,heater goes back to blowing hot or cold and no way of adjusting temperature.
How to disassemble a Mercedes W210 heater control valve?
Press the metal tabs on the housing back inside (green arrows). This prepares the housing to accept the new Duovalve. Shown here are the catches on the Duovalve (green arrows). These slide over the catches in the housing, locking it in place. Now take the new Duovalve and press it down into the housing until both sides click into place.
How does the climate control work on a Mercedes W210?
The climate control system on the W210 Chassis Mercedes has a dual climate system. What this means is that one side of the car can be cool, while the other side blows warm air and vice-versa. The Duovalve is used to regulate the amount of engine coolant that flows into the heater core between both sides of the passenger compartment.
Why does my W210 heater control valve stick open?
When this happens, the valve can stick open. Additionally the inside of the two coils can become blocked with corrosion from the engine coolant, preventing the valves from closing. In both cases, you would get hot air blowing from one or both of the vents at the same time.
Press the metal tabs on the housing back inside (green arrows). This prepares the housing to accept the new Duovalve. Shown here are the catches on the Duovalve (green arrows). These slide over the catches in the housing, locking it in place. Now take the new Duovalve and press it down into the housing until both sides click into place.
Is there a repair kit for a Mercedes Benz heater?
EXCLUSIVE OFFER. The heater control valve repair kit is a unique set of service parts, and a ready solution for the quick and effective repair of a heater valve in a Mercedes-Benz car. If you are having trouble with heating your car interior, don’t waste hundreds of dollars on replacing the valve for the heater.
The climate control system on the W210 Chassis Mercedes has a dual climate system. What this means is that one side of the car can be cool, while the other side blows warm air and vice-versa. The Duovalve is used to regulate the amount of engine coolant that flows into the heater core between both sides of the passenger compartment.
When this happens, the valve can stick open. Additionally the inside of the two coils can become blocked with corrosion from the engine coolant, preventing the valves from closing. In both cases, you would get hot air blowing from one or both of the vents at the same time.