Heater Valve Replacement - C Class - W204 - Mercedes-Benz

Heater Valve Replacement - C Class - W204 - Mercedes-Benz

Heater Valve Replacement Time: 1 hour Tab: $100 to $150 Talent: 3 Tools: T30 Torx, flathead screwdriver Applicable Models: Mercedes-Benz C350 (2008-14) Mercedes-Benz GLK350 (2010-14) Parts Required: Heater valve Hot Tip: Replace the pump with the engine cold Performance Gain: Working heat Complementary Modification: Flush cooling system The heater valve shuts off the flow of coolant to the heater core to allow the engine to come up to temperature quicker on cold starts. If your heater valve has stopped working you can replace it without a lot of trouble but be prepared to work in a crowded area and do some things by feel. I have removed the intake manifold to get pictures of what you are going to be doing. You do not need to remove the manifold to replace the valve. It makes it easier but adds about 4 hours of work plus the cost of intake gaskets. If you are going to be replacing the valve you might as well replace the coolant as well. If it is an emergency and you need to get the car right back on the road it is possible to remove the valve without draining the radiator. But you will loose all the fluid until the level gets even with the valve. I recommend doing it right and draining the coolant. Even with the coolant drained, you should expect a little spillage when removing the hoses, so be prepared for it. It is a tight fit but this article will help you replace your heater valve Applies to: C350 (2007-14), SLK350 (2004-14), CLS350 (2004-14), CLK350 (2005-14), E350 (2005-14), S350 (2005-14), SL350 (2005-14), R350 (2006-14), ML350 (2006-14), Viano (2005-14), Sprinter (2006-14), CLC350 (2008-14), GLK350 (2008-12)

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