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Service bulletin NCU-2021070009

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10199471
Published by NHTSA2021-08-04
Manufacturer's numberNCU-2021070009
Manufacturer's date2021-07-16
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

Launch NCU - 2021070009 MY19 217 Perform SCN coding in engine control unit

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Equipment and accessories, Engine control module

Vehicles listed
MERCEDES-BENZ AMG S652019
MERCEDES-BENZ S 4502019
MERCEDES-BENZ S 5502019
MERCEDES-BENZ S 560 E2019
MERCEDES-BENZ S5602019

Listing a model year does not mean every vehicle of it is concerned: the document says which.