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Service bulletin LI0708P0651491

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 id10205150
Published by NHTSA2021-12-20
Manufacturer's numberLI0708P0651491
Manufacturer's date2016-11-07
NHTSA componentENGINE; ELECTRICAL SYSTEM:SOFTWARE; UNKNOWN OR OTHER

NHTSA's summary

Engine sound change after recent software updates.

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

Electrical system, Engine, Software

Vehicles listed
MERCEDES BENZ C632006 to 2010
MERCEDES BENZ C63 AMG2009
MERCEDES-BENZ AMG C632010 to 2021
MERCEDES-BENZ AMG C63 S2019 to 2022
MERCEDES-BENZ AMG C63S2015 to 2018
MERCEDES-BENZ AMG GLC632018 to 2022
MERCEDES-BENZ AMG GLC63 S2020 to 2022
MERCEDES-BENZ C632011

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