idling problem after charging battery?

Hi, I'm new here on the forum, and I'm from Sweden, (so excuse the misspellings) I have a mercedes w211 200E 2006 M271.941 engine I have a problem with a shaky idle, and that the car almost dies when I step on the gas.. the whole engine shakes, so the car cannot be driven.. I tried disconnecting the MAF sensor but it made no difference.. the car has been stationary for 3 days with the battery charger on, (plus and minus poles directly in front of the engine) before that the car ran... idling problem after charging battery?

Hi, I'm new here on the forum, and I'm from Sweden, (so excuse the misspellings)

I have a mercedes w211 200E 2006
M271.941 engine

I have a problem with a shaky idle, and that the car almost dies when I step on the gas..
the whole engine shakes,
so the car cannot be driven..
I tried disconnecting the MAF sensor but it made no difference..

the car has been stationary for 3 days with the battery charger on, (plus and minus poles directly in front of the engine) before that the car ran...

idling problem after charging battery?

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