Black smoke
#1
Thread Starter
Senior Member
Joined: Nov 2007
Posts: 313
Likes: 2
From: Toronto, Canada
2005 E320 CDI (sold); 2007 R320 CDI (sold); 2008 ML320 CDI; 2014 ML350 Bluetec
Black smoke
Hello,
My friend has 2009 ML350 Bluetec and he noticed black smoke is coming from pipe (see attached picture). Do you have an idea what it could be a problem?
2009 ML350 Bluetec
My friend has 2009 ML350 Bluetec and he noticed black smoke is coming from pipe (see attached picture). Do you have an idea what it could be a problem?
2009 ML350 Bluetec
#3
Thread Starter
Senior Member
Joined: Nov 2007
Posts: 313
Likes: 2
From: Toronto, Canada
2005 E320 CDI (sold); 2007 R320 CDI (sold); 2008 ML320 CDI; 2014 ML350 Bluetec
#4
Black smoke is rich exhaust. Exhaust should stay in the exhaust. Since it is coming out of the exhaust, there must be a leak somewhere. Has work been done on this vehicle recently?
#5
Originally Posted by zemun1234
Hello,
My friend has 2009 ML350 Bluetec and he noticed black smoke is coming from pipe (see attached picture). Do you have an idea what it could be a problem?
2009 ML350 Bluetec
My friend has 2009 ML350 Bluetec and he noticed black smoke is coming from pipe (see attached picture). Do you have an idea what it could be a problem?
2009 ML350 Bluetec
Oil bleeder filters oil from blow-by gases.
Do the blow-by test see how bad it is, maybe bleeder must be replaced.
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zemun1234 (10-10-2019)
#6
Thread Starter
Senior Member
Joined: Nov 2007
Posts: 313
Likes: 2
From: Toronto, Canada
2005 E320 CDI (sold); 2007 R320 CDI (sold); 2008 ML320 CDI; 2014 ML350 Bluetec
I am going relay your respond and ask him to check a few things ...
A.
#7
Yeah, could be the black death (Leaky injector seal)
Could be the the oil vapor separator / hose assembly (likely)
Could be something else as the exhaust pressure sensors are there too.
Remove the air filter and inspect. Have him turn on the car, where to you feel air?
Could be the the oil vapor separator / hose assembly (likely)
Could be something else as the exhaust pressure sensors are there too.
Remove the air filter and inspect. Have him turn on the car, where to you feel air?