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TSB Document:

Affected Component: ELECTRICAL SYSTEM

Summary
Mercedes-Benz AG ("MBAG"), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2012-2016 E-Class, GL-Class, GLE-Class, GLK-Class, and ML-Class (166, 204, 212 platforms) vehicles, the coding of the control units for selective catalytic reduction (SCR) and fully integrated transmission control (VGS) do not correspond to the specifications as part of the “BlueTEC update” diesel field measure. This could result in the CAL ID (Calibration ID) not being read out from the vehicle and re-documented in the relevant systems. This situation does not have any additional technical implications for the vehicle. What We’re Doing MBUSA will conduct an Emission Service Campaign in which an authorized Mercedes-Benz dealer will update the SCN coding for SCR and VGS on the affected vehicles.

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Date Published
FEB 13, 2023
NHTSA TSB #
10232319
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