Question about 2008 Volkswagen Passat
It is a heater core not an evaporator. Core is locater against the firewall behind the dash. If the fluid level has gotten low recently it could have air trapped in the core. The return hose from the core is located on the driver side under the hood, under the cover on the cowl. The hose has a bleed hole located under the clamp. loosen the clamp, slide the hose back and expose the hole.. Fill the coolant bottle and run the engine. when you get a steady stream of coolant the air is out. If you still have no heat it could be an issue with the doors in the evap unit. Remove the glove box and check to see if the doors move when you use the controls. If all that is ok you have a plugged core.
Posted on Dec 31, 2013
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Posted on Jan 02, 2017
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