Jerky / powerless engine on cold start, W213 220 d

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Joined
Jan 16, 2012
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Location
Stockholm, Sweden
Your Mercedes
W211/2005/200K
It is a Mercedes W213 diesel 220 d. Sometimes when the engine is started and maybe for the next 15 seconds, the engine feels very powerless. Sometimes the engine revs can alternate up and down when you try to drive.
But the problem disappears after a maximum of 30 sec and then the engine runs perfectly.
At one point the yellow engine indication lamp came on but it went out after a few starts. I have searched for fault codes with my OBD2 reader but found none.
Does anyone recognize this and know what it is?
 
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