Mercedes Benz GLK350 owners have reported 1 problem related to gas recirculation valve (egr valve) (under the engine and engine cooling category). The most recently reported issues are listed below.
The air conditioner does not blow cool air, it blow hot air and smells moldy. Specifically when the temperture gets 90 degrees or higher and the engine sounds loud.
See
all problems of the 2011 Mercedes Benz GLK350
🔎.