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Non VW Group Diesels This section is for discusion of Non VWGroup Diesels.

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Old September 13th, 2017, 09:29   #1
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Join Date: Jan 2008
Location: Thompson's Station, TN
TDI(s): Jetta
Default Mercedes ML Diesel Changes?

Trying to get some useful info on the ML320/350 Diesel and changes they made. All I can find is navi differences, etc.

Seems the major groups are:
07/08 ML320 CDI

09+ ML320 Bluetec

ML350 Bluetec

I see that the 09 got the urea/adblue and picked up a few hp. Did they drop rail pressure or anything else like VW did?

Why do the later cars get a MPG bump over the earlier ones? Any mechanical changes? Lighter?

Any mechanical info would be greatly appreciated!
2002 Jetta Wagon 17/22, 11mm IP, DLC1019, SB Stg II Endurance, FMIC, PD150 Manifold, OMI/VR6 Airbox, 3" Exhaust, Metal Nerd 2" Lift, Skid Plate, CAT Fuel Filter, TD Tuning Race Tune, etc.

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Old September 17th, 2017, 07:59   #2
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Join Date: May 2012
Location: Algonquin, IL
TDI(s): E320 CDI

Obviously the CDI will be most reliable... Straight inline iron block, no diesel emission crap to go bad.
'14 BMW 535D RaceChip Tuned
'14 BMW 328xi
'03 4Runner Lifted and fully armored
'08 Suzuki GSX1300BK Full pipe and tune..200+hp
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Old September 24th, 2017, 03:30   #3
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Join Date: Jan 2005
Location: St. Louis, MO

The ML are V6 OM-642. No real difference between '08-'09 the BlueTech cross over years. In '12 they boosted the output of the OM-642 to 240hp. For the next change over '15 or '16 they went to a 4 cylinder diesel @ 215hp with much higher fuel economy.

My '09 fuel economy is 24 Mpg over 20k of usage. I am not sure about the '08 as my brother drives it, does a lot of idling and doesn't track fuel economy.

The drivetrain is basically unchanged from '06 - '14. 7 speed trans with single speed transfer case. There were some small changes in torque bias front/rear but nothing to note.

2005 MB E320 CDI 155K
2008 MB ML320 CDI 82k
2009 MB ML320 BT 51k
2005 Passat GLS TDI *Sold*
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