Mercedes-Benz E350 2011–2012 — technical service bulletin
Bulletin NCU-2020050028 · NHTSA communication 10210920 · issued Apr 7, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2011–2012
model years
2
vehicle entries
Official summary
Mercedes-Benz USA, LLC (â MBUSAâ ) is modifying the emission control system on certain diesel vehicles. The Emission Modification for MY11-12 E350 BlueTEC (W212) vehicles has been approved by EPA and CARB, and is now ready for installation. An authorized Mercedes-Benz Dealer will install the Emission Modification at no cost to the Owner/Lessee. What Weâ re Doing An authorized Mercedes-Benz Dealer will replace certain emission control system components and update certain software in eligible vehicles.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.