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When the engine is off and the key off or removed, The REST button will extract any heat remaining in the engine and blow it into the cabin. It will cut out automatically.

also on some new models like a s class or a cl class when your driving and the windows are down push and hold the rest button and all the windows will close its called the tunnel feature y its called that i have no clue lol but yes your answer is 100% correct i just found this also works

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13y ago

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