Green Diesel Engineering
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
Green Diesel Engineering
Is anybody tried above product on Mercedes W164 ? It seems interesting (I like idea about to shutdown swirl motor 
).
I'd appreciate any contribution to this post
). I'd appreciate any contribution to this post
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 did by myself 8 months ago and I have to confirm that I am going faster and same or less diesel ...
I got limp mode and I just put resistor between swirl motor contacts (simulate operating motor). Immediately limp mode disappeared and I back to old, fast days
I got limp mode and I just put resistor between swirl motor contacts (simulate operating motor). Immediately limp mode disappeared and I back to old, fast days
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
Newbie
Joined: Nov 2014
Posts: 13
Likes: 0
2007 ML320 CDI
I recently purchased the GDE tuner for my '07 ML320 CDI.
I initially wanted to remove the DPF but decided for now not to, but welcome the EGR and swirl motor disable.
First thing I noticed was how much smoother the truck is, the off the line lag is gone thankfully but it CAN come at a fuel economy cost. I noticed an improvement of around 1.5L/100km on my commute and recently did a 1500km trip with an average 9.1L/100km through the mountains with cruise set at the speed limit +10km/h. I just installed snow tires on my 20" AMG wheels before the trip and have since seen a 1L/100km decrease in economy on my commute so likely would have had even better mileage on my trip.
Overall I am quite impressed with the improvement in economy, power and driveablility. GDE was easy to deal with, ordered off their website, received it and followed the simple directions to pull my stock tune and emailed it to GDE. Had my tune back very quickly and loaded it into the truck.
I changed my oil before my trip and it remained clean and clear even now with 2000km on it. Before the oil would be black within 50km from a change...
I also installed a Provent 150 PCV catch can system and cleaned out my intake using liqui moly diesel intake spray to clean up the likely buildup. I picked up a few cans and plan on doing it before each oil change until im out. After the first spraying I had significant smoke out the tail pipes telling me it was working.
My ML has 249k km on the clock.
I initially wanted to remove the DPF but decided for now not to, but welcome the EGR and swirl motor disable.
First thing I noticed was how much smoother the truck is, the off the line lag is gone thankfully but it CAN come at a fuel economy cost. I noticed an improvement of around 1.5L/100km on my commute and recently did a 1500km trip with an average 9.1L/100km through the mountains with cruise set at the speed limit +10km/h. I just installed snow tires on my 20" AMG wheels before the trip and have since seen a 1L/100km decrease in economy on my commute so likely would have had even better mileage on my trip.
Overall I am quite impressed with the improvement in economy, power and driveablility. GDE was easy to deal with, ordered off their website, received it and followed the simple directions to pull my stock tune and emailed it to GDE. Had my tune back very quickly and loaded it into the truck.
I changed my oil before my trip and it remained clean and clear even now with 2000km on it. Before the oil would be black within 50km from a change...
I also installed a Provent 150 PCV catch can system and cleaned out my intake using liqui moly diesel intake spray to clean up the likely buildup. I picked up a few cans and plan on doing it before each oil change until im out. After the first spraying I had significant smoke out the tail pipes telling me it was working.
My ML has 249k km on the clock.
Last edited by Basic-ML320CDI; Nov 1, 2014 at 10:25 PM.
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Senior Member
Joined: Feb 2010
Posts: 431
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From: Cross Roads, PA
2008 ML320CDI
Just did mine last week. Round trip from PA to Vermont, 784 miles round trip. Average MPG was 26.2. My usual MPG was 24.5. Just on the way home, MPG was 27.2, as I was a little less aggressive than on my way up. So far so good.
Junior Member
Joined: Aug 2014
Posts: 62
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From: St. Louis
ML350 Blutec
Guys, kind of new to MB and to the diesel thing. I have a 2010 ML350 Blutec. Purchased used, I have done and had work done, all standard maintenance stuff. Can you give more detail on this Green Diesel Engineering? Im US based so is this a EU thing?
Out Of Control!!
Joined: Aug 2010
Posts: 12,516
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From: Charlotte NC area
2019 WS222 S450 4-Matic / 2007 W211 E350 4Matic (Sold) / 2008 X164 GL320 CDI
With the improvement in MPG, can anyone confirm that GDE did not remove, shorten or reduce the number of DPF clean cycles?
Senior Member
Joined: Feb 2010
Posts: 431
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From: Cross Roads, PA
2008 ML320CDI
Senior Member
Joined: Feb 2010
Posts: 431
Likes: 4
From: Cross Roads, PA
2008 ML320CDI
Just found this related to a Jeep Grand Cherokee and what it does.
. EGR issues are eliminated and the smoke emissions are reduced substantially. For vehicles equipped with a DPF (particulate filter), the regeneration frequency is less and backpressure tends to be lower further improving the fuel economy. In normal driving the exhaust temps are 50-100 F lower than stock to improve engine and turbo life. - See more at: http://greendieselengineering.com/jf....9eqaCRoR.dpuf
. EGR issues are eliminated and the smoke emissions are reduced substantially. For vehicles equipped with a DPF (particulate filter), the regeneration frequency is less and backpressure tends to be lower further improving the fuel economy. In normal driving the exhaust temps are 50-100 F lower than stock to improve engine and turbo life. - See more at: http://greendieselengineering.com/jf....9eqaCRoR.dpuf
Last edited by 06e320cdi; Feb 11, 2015 at 01:05 PM.
Out Of Control!!
Joined: Aug 2010
Posts: 12,516
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From: Charlotte NC area
2019 WS222 S450 4-Matic / 2007 W211 E350 4Matic (Sold) / 2008 X164 GL320 CDI
The question is:
Are the regens less because they have mapped them to occur less often,
or because they are mapped the same and are required less often????
Are the regens less because they have mapped them to occur less often,
or because they are mapped the same and are required less often????
Senior Member
Joined: Feb 2010
Posts: 431
Likes: 4
From: Cross Roads, PA
2008 ML320CDI
Here is their response from an email to GDE. Looks like they dont mess with the regen process
Dennis,
There is less particulates with the GDE tune, so the loading is less. On that application the regen interval might have a mileage limit where it forces a regen, but in either case the dpf will be loaded less for a given number of miles.
Thanks
Keith
Out Of Control!!
Joined: Aug 2010
Posts: 12,516
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From: Charlotte NC area
2019 WS222 S450 4-Matic / 2007 W211 E350 4Matic (Sold) / 2008 X164 GL320 CDI
Here is their response from an email to GDE. Looks like they dont mess with the regen process
Dennis,
There is less particulates with the GDE tune, so the loading is less. On that application the regen interval might have a mileage limit where it forces a regen, but in either case the dpf will be loaded less for a given number of miles.
Thanks
Keith
Dennis,
There is less particulates with the GDE tune, so the loading is less. On that application the regen interval might have a mileage limit where it forces a regen, but in either case the dpf will be loaded less for a given number of miles.
Thanks
Keith
Does your tune make any changes to the map, algorithm or portion of the code that decides when a regeneration is required?
I can understand that less loading will require less regens, but I am concerned that less regens when actually needed could shorten the life of the DPF.
Senior Member
Joined: Feb 2010
Posts: 431
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From: Cross Roads, PA
2008 ML320CDI
Going to keep this brief, my ML is at dealership in Lynchburg, VA now with a plugged DPF. I do not have a cause, but its coincidentally about 2000 miles after my GDE reprogramming. I also purchased fuel at an unknown service station in Greensboro NC. Vehicle was running great, good mileage. However I was driving up from Greensboro during the snowstorm Monday night, averaging 45-50MPH when all of a sudden seemed to go in limp mode, no CEL, gradually kept loosing power until I could barely get off the exit and to a gas station. Sat for 8 hours in cold vehicle until tow truck could make it to me. Dealership states DPF plugged, the awesome service advisor and I talk about options and I mention there is place there in Lynchburg that cleans them. He was willing to take it there and see what they could do before we order a new $3000.00 DPF, which has to come from Germany. See attached picture of inlet side of DPF
Will update post with resolution.
Will update post with resolution.
Out Of Control!!
Joined: Aug 2010
Posts: 12,516
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From: Charlotte NC area
2019 WS222 S450 4-Matic / 2007 W211 E350 4Matic (Sold) / 2008 X164 GL320 CDI
Question. Did you try a restart to see if it came out of limp?
Did you try a new DPF Differential Pressure Sensor?
The few times mine has tripped into limp has ALWAYS been cold wet weather.
Did you try a new DPF Differential Pressure Sensor?
The few times mine has tripped into limp has ALWAYS been cold wet weather.
Senior Member
Joined: Feb 2010
Posts: 431
Likes: 4
From: Cross Roads, PA
2008 ML320CDI
N Jay,
I tried multiple times during the 8 hours I was sitting in the cold waiting for tow truck, it would idle for 5 seconds and then stall. The more pedal you gave it the faster it would stall. I am thankful I was able to hobble off interstate 81 and to a safe location during that snowstorm on Monday.
I tried multiple times during the 8 hours I was sitting in the cold waiting for tow truck, it would idle for 5 seconds and then stall. The more pedal you gave it the faster it would stall. I am thankful I was able to hobble off interstate 81 and to a safe location during that snowstorm on Monday.
Newbie
Joined: Feb 2015
Posts: 2
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ML320 CDI
I doubt that the GDE tune was to blame, this is very common on the R and ML models that have the DPF filter. It normally happens around 100k-150k. It makes sense, over time after so many regenerations the DPF will clog. The DPF was one of the worst ideas ever and has probably contributed to more pollution than less due to lower mpg.
Out Of Control!!
Joined: Aug 2010
Posts: 12,516
Likes: 628
From: Charlotte NC area
2019 WS222 S450 4-Matic / 2007 W211 E350 4Matic (Sold) / 2008 X164 GL320 CDI
I doubt that the GDE tune was to blame, this is very common on the R and ML models that have the DPF filter. It normally happens around 100k-150k. It makes sense, over time after so many regenerations the DPF will clog. The DPF was one of the worst ideas ever and has probably contributed to more pollution than less due to lower mpg.
Except that diesel particulates are a significant case of cancer, so I have no trouble with DPF.
Just hope they evolve forward like cats did into an insignificant issue.
I am not sure if you can safely assume the GDE did not cause (or at least hasten) the failure.
I am very concerned that even by error they did something that reduces needed regen cycles.
Last edited by N_Jay; Feb 24, 2015 at 09:08 PM.
Newbie
Joined: Feb 2015
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ML320 CDI
I get your point, and I think it is something for debate.
With the introduction of ULSD and Biodiesel some particulates have been reduced. I just wish the manufacturers were more forthcoming to how detrimental the DPF is for reliability of the diesel engine. MB does not even recommend a cleaning or anything.
This should be part of routine maintenance for all DPF's to extend lifespan.
I just don't think the modern day MB diesel is nearly as reliable as the older ones.
With the introduction of ULSD and Biodiesel some particulates have been reduced. I just wish the manufacturers were more forthcoming to how detrimental the DPF is for reliability of the diesel engine. MB does not even recommend a cleaning or anything.
This should be part of routine maintenance for all DPF's to extend lifespan.
I just don't think the modern day MB diesel is nearly as reliable as the older ones.
Member
Joined: Mar 2013
Posts: 162
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From: Madison, AL
2009 ML320 Bluetec
The DPF does not eliminate C2, only reduces the size of the C2 particulate.
The DOC reduces the nasties most likely related to cancer. SCR (Bluetec) addresses oxides of nitrogen.
Biodiesel burns hotter which produces more NOx. Only "reduces emissions" with accounting tricks which do not count carbon because it came from plants which extracted the carbon from the atmosphere. Never mind that that carbon would not have been put back in the atmosphere but for biodiesel.
Senior Member
Joined: Feb 2010
Posts: 431
Likes: 4
From: Cross Roads, PA
2008 ML320CDI
Just wanted to throw quick update. 1261.00 later and I am back on the road, I have not emailed GDE just to let them know, (not accusatory) that the DPF plugged within 2K miles of their tune. I believe I am back at the original programming of my ECU. The service manager explained that they actually split the case open, and cleaned with an air knife. They then had to bake it for 12 hours to turn the remaining to ash. The resealed it, painted it and I was back in business. The odd thing was when it was first started at the dealer on Friday, it smelled odd, very diesely and large cloud of blue smoke when I pulled away. But since there has been no sign of smoke and the scent is back to baked sour dough.
