Q: Could you please define what can be root cause?
Hi, I have Mercedes E240 2002 and has idle pulsing problem when it is cold and sometimes when I drive and brake to stop fully and waiting my foot on brake pedal idle starts pulsing. It also vibrates the car and feels like engine loosing power a bit. I understand it from lights and air conditioning air flow noise which also pulsates when idle pulses.
My car has 180000 miles.
My car has an automatic transmission.
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