Make doubly sure, no triple sure, that anyone who does an oil change on your Sprinter is familiar with the proper oils and MB specifications for it. Also insist that the work order and invoice for work list the specific oil used, and that it complies with the proper MB spec for the oil.
This would even apply to MB dealers, as they have been known to install the wrong oil in Sprinters.
I'm not talking just listing "Mobil 1" or something like that, I mean the EXACT variant of the oil, "Mobil 1 ESP 0W-30 MB spec 229.52" or "Valvoline SYNPower MST 5W-40 Full Synthetic MB spec 229.51"
These oils are not available at Wal-Mart, you have to do a little looking to find them. Oddly (or not) NAPA carries the Valvoline and frequently has it on sale for a very reasonable price of $5.49 a quart or so.
For a complete, current list of engine oil specifications, look at this list....
http://bevo.mercedes-benz.com/downloadf.php?filename=en/Spec_223_2.pdfYour engine will be listed on the next to the bottom line of the first page, and the only approved specifications are 228.51, 229.31, 229.51 and 229.52.
The 229.52 spec is the latest and greatest, but it only incudes 30wt oils. If you have a desire to run 40wt, you will need 229.51 oils.
To find a complete list of approved oils for each of these specs, go to this link.
http://bevo.mercedes-benz.com/bevolistenmain.php?language_id=1and click on the spec number, it will take you to a list of world wide approved oils meeting this spec. Most of the listed oils will NOT be available in North America, and I would be willing to speculate that the most commonly used oils are the two I listed above as examples.
This strict adherence to the MB specs is largely (but not entirely) driven by the Diesel Exhaust Filter, which can become contaminated or clogged by ash and other undesirables in non approved oils that find their way into the exhaust.
Also, strict adherence to the proper Transmission fluid is also necessary as this transmission cannot handle generic ATF. The spec is found in your owners manual and is 236.14. The most commonly found fluids in North America are most likely (aside from the official MB private labeled product from the dealer) is Fuchs 4134 and Shell ATF134. There may be others.
MB is emphatic that products meeting their specifications are included in their lists, and that any claims to meeting the specs found on the container or in literature must use the word APPROVED. Claims that a fluid simply "meets" the spec has no weight at all, and is a marketing ploy on the part of the product to circumvent the MB approval process.
Charles
2007 Winnebago View 523H on a 2006 Dodge (Daimler-Chrysler aka Mercedes) Sprinter 3500 chassis (T1N). Bought Sept 2015 with 18K miles on it, Prog Ind HW30C, Prog Dymanics PD4645, Chill Grille, PML/Yourcovers.com deep alum trans pan, AutoMeter 8558 trans temp gauge, Roadmaster sway bar, Fantastic Ultra Breeze hood, added OEM parabolic mirrors and RH aspherical mirror.
'03 Ram 2500 CTD, 5.9HO six speed, PacBrake Exh Brake, std cab, long bed, Leer top and 2008 Bigfoot 25B21RB.. previously (both gone) 2008 Thor/Dutchman Freedom Spirit 180 & 2007 Winnebago View 23H Motorhome.