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April 7, 2022 Service bulletin

Mercedes-Benz USA, LLC (“MBUSA”) is modifying the emission control system on certain diesel vehicles

Mercedes-Benz technical service bulletin NCU-2020050028 for 2011-2012 Mercedes-Benz E350.

Bulletin number
NCU-2020050028
Component
Engine and engine cooling
Summary
Mercedes-Benz USA, LLC (“MBUSA”) 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 We’re Doing An authorized Mercedes-Benz Dealer will replace certain emission control system components and update certain software in eligible vehicles.

Owners of these vehicles have filed 34 complaints in the engine category.

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