M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

Hot ML350 Bluetec

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Old Mar 9, 2011 | 07:54 PM
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davatk's Avatar
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2019 GLC 300
Hot ML350 Bluetec

Well, I drove home from work this evening (about 25 miles) averaging about 60 mph. When I pulled into the garage I got out of of my ML and my wife and I both noticed a burning smell (kinda like burning plastic). Anyhow, also noticed the fan running for the radiator. I started the vehicle back up, and viewed the temp (running about 90 degreed C) which I guess is about normal but not real sure for a diesel. I lifted the hood and the smell didn't seem to be radiating from there, however as I got toward the back of the vehicle I could smell it more. So it's still a mystery at this point. Anyone else notice this ?

Thanks !
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Old Mar 9, 2011 | 08:43 PM
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04 sl 500, 07 ml 320 cdi
it's the anti particulate filter that was regenerating...it usually makes a big white smoke and smeel a lot of burned plastic
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Old Mar 11, 2011 | 11:15 PM
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2011 ml350 Bluetec
Stesl is spot-on. It's the diesel particulate burn-off. It smells like your seat heaters have ignited but is quite normal.
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Old Mar 12, 2011 | 07:56 AM
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04 sl 500, 07 ml 320 cdi
and in case your seat heater is ignited and began to make a big smoke too...get worried isn't just the particulate filter ahahaha

just joking
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Old Mar 13, 2011 | 07:16 AM
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From: Woodstock, IL
His 2019 RAM Cummins Turbo Diesel Laramie; Her's 2007 ML320 CDI P3; Mine BMW R1200R
On mine I had that smell once or twice early on. Turns out it was the DPF doing its thing. I think there is a coating on it or maybe oils from handling it during assembly that burns off. After that never had the smell again.
Common complaint for new owners after a highway drive. Good thing is you probably will never notice it again.
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Old Jun 6, 2015 | 10:58 AM
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Well I have an ML350 blue tec 2012 model! There is this white huge smoke that comes out at least every three days! I know about the dpf but mine seem different and a bit embarrassing. Is the huge smoke normal? Any help please?
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