is smoke normal for a diesel engine?
12-10-2011, 03:40 AM
#1
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2011 M Class 300CDI
is smoke normal for a diesel engine?
Hey guys i got a 2011 ml300cdi and notice that under hard acceleration or harder than usual acceleleration that there is smoke looks like dust (Not black) when i look in the rear windows, is this normal?? thanks
12-10-2011, 10:34 AM
#2
Super Member
That's rubber burning from your tires.
I have never noticed exhaust smoke from my 07 ML after 100K miles of driving, and the inside of my tailpipes barely have any residue on them.
I see and smell more brown dust from gasoline cars when they accelerate.
Go clean diesel.
I have never noticed exhaust smoke from my 07 ML after 100K miles of driving, and the inside of my tailpipes barely have any residue on them.
I see and smell more brown dust from gasoline cars when they accelerate.
Go clean diesel.
12-10-2011, 03:36 PM
#3
MBWorld Fanatic!
Diesel particulate filters--mandatory since 2007 in USA--have eliminated diesel smoke.
Given you have 300CDI--clearly not a USA vehicle--you may not have one fitted.
Given you have 300CDI--clearly not a USA vehicle--you may not have one fitted.
Last edited by lkchris; 12-10-2011 at 03:38 PM.
12-12-2011, 09:26 AM
#5
Senior Member
None of my 3 Diesel vehicles has any cloudy discharge from their tail pipe so far.
My VW TDI does not have any DEF treatment and it has over 35,000 KM.
My 335d has DEF and over 65,000 KM on the odo.
My ML has AdBlue/DEF and over 24,000 KM.
Perhaps it could be condensation in the cold morning air that I often see coming out of vehicle tail pipes in cold mornings?
Being a 2011 model I would get the dealer to investigate since it's under warranty?
My VW TDI does not have any DEF treatment and it has over 35,000 KM.
My 335d has DEF and over 65,000 KM on the odo.
My ML has AdBlue/DEF and over 24,000 KM.
Perhaps it could be condensation in the cold morning air that I often see coming out of vehicle tail pipes in cold mornings?
Being a 2011 model I would get the dealer to investigate since it's under warranty?
12-12-2011, 09:51 AM
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2011 ML550
I have never seen a car that didn't blow out dirty exhaust to some extent under high rpm and full throttle applications. I would be very surprised if MB diesels were anything different.
Perhaps everyone has a different definition of "hard acceleration, or harder than ususal acceleration."
I'd bring the car to the dealer and see what they say if you feel it's not right.
Perhaps everyone has a different definition of "hard acceleration, or harder than ususal acceleration."
I'd bring the car to the dealer and see what they say if you feel it's not right.
12-12-2011, 09:52 AM
#7
Senior Member
Also, check turbo seal (intake turbo seal) ...
just speaking from experience
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12-12-2011, 04:28 PM
#8
MBWorld Fanatic!
Diesel exhaust fluid/AsBlue is NOT the mechanism that eliminates smoke. Rather it's the diesel particulate filter. Smoke is particulates.
12-29-2011, 03:06 PM
#9
Newbie
European diesel car are very good performance wise, but they also need very low sulfur diesel to run in my country that's a bit of problem since we don't carry that level of low sulfur diesel around, so it's very common to have mercedes, audi, vw,bmw showing some smoke when accelerated, so it's worrying to by a very used diesel engine vehicle.
