waf,
So, what shop have you been using for your warranty work?
Do they not give you an invoice with the DTC's (MB Diagnostic Trouble Codes and sub codes) that they investigated?
Are they NOT using the MB SDS (Star Diagnosis System) when working on your Sprinter?
Have you always gone back to the same shop for warranty repairs?
I just don't get it.
Has the shop called/emailed Daimler Vans LLC Engineering Group in South Carolina/ or worked with MB Engineering
in Germany.
Have you talked to the MB Sprinter regional rep about your issues?
I have 57,000 absolutely trouble free miles on my 2014 OM-651 2.143 liter 4 cylinder 2 stage turbocharged engine and 7G-Tronic
7 speed transmission.
About 10% of these miles were towing a 5,140 lb. 14' x 7'x 10' cargo trailer, so it's not been all easy back and forth to work and
commuting 320 miles 3-4 times a month.
If the shop you are using is a fully authorized Mercedes Benz or Freightliner Sprinter dealer, there should be a print out on virtually
every maintenance or repair item ever performed on your Sprinter, in the data base, by the VIN #.
Hope this helps,
Roger