In this video we go over how to rebuild a Mercedes heating valve (also called the duovalve). Lots of older Mercedes use a similar valve to the own shown so this guide should be applicable for a lot of models. Just make sure you get the right repair kit for yours, there are some minor differences.
Some signs of a failing valve: no heat, too much heat, inconsistent heat, more heat on one side than the other, incorrectly diagnosed air conditioning issues.
Негізгі бет Mercedes Heating Valve Rebuild
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