2016 Mercedes-Benz GL-Class - Jerking when initially starting

Not all the time, but when I start my car, I will begin hesitating while I am in park. I can feel a jerk back and forth. Once I start driving, it stops.

He who hesitates is lost.

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That sounds like an idle problem. Many possibilities, but two common causes of rough idling:

  • throttle-valve sticking or out correct position
  • fuel/air mixture problem, vacuum system leak for example