MB Part# 906 470 18 15 - Verify part number before ordering.
See other part below, MB Part# 906 470 17 00
This unit is a complete unit with the tank heating unit, for models 2014 to 2016. This is the later version which must be replaced as a complete assembly, as it has a non-replaceable heating unit built in to the tank. If you look at the top of the tank, you can determine whether you have the sealed tank (this one) or the version with removable heating unit.
Detailed Description
Sprinter II 2014-2018 3.0L V6 (Models after this date and 4 CYL models have the heater built into the tank)