1999 E55, 2001 E320, 1990 560 SEC, 2004 ML350, 2001 ML55, 1995 S500, 1998 SL500, 2010 E550 Sport zoo
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Also a symptom of a dirty MAF..
I would say dirty gas, and possibly a dirty MAF.
I am not a Sea Foam guy (although many have great things to say), I would add a quality injector cleaner and go thru a couple of tanks, put in a fresh OE air filter, and while replacing the air filter I would buy a can of CRC MAF spray cleaner and give the MAF a good cleaning.
I would say dirty gas, and possibly a dirty MAF.
I am not a Sea Foam guy (although many have great things to say), I would add a quality injector cleaner and go thru a couple of tanks, put in a fresh OE air filter, and while replacing the air filter I would buy a can of CRC MAF spray cleaner and give the MAF a good cleaning.