2014 Mercedes Benz ML500 slightly rough idle

NN-SD-MX@alien.topB to Mechanic Advice@gearhead.townEnglish · 1 year ago

As described in the title, I have a 2014 Mercedes Benz ML500, and at idle (mainly waiting at stoplights) it idles at about 500 rpm which causes some slight vibrations. This only happens when in drive. When I’m sitting in park the car idles at 600 rpm and it is noticeable smoother. Any ideas for the reasoning for the low idle, and any recommendations for fixes? Thanks everyone in advance

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