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Service bulletin CL-ELWExhaustVal

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 id10233794
Published by NHTSA2023-04-05
Manufacturer's numberCL-ELWExhaustVal
Manufacturer's date2023-03-30
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Why the warranty extension? On certain Model Year 2011-2016 CL/CLS/S/E/ML/SL/G/GL/GLE-Class vehicles with V8 engines, the exhaust valve assembly might not work properly and result in an engine misfire and potential illumination of the check engine Malfunction Indicator Lamp (‘MIL’).

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

Vehicles listed
MERCEDES-BENZ AMG E63S2013 to 2015
MERCEDES-BENZ AMG ML632011 to 2015
MERCEDES-BENZ CL5502011 to 2014
MERCEDES-BENZ CL632011 to 2014
MERCEDES-BENZ CLE 63S2016
MERCEDES-BENZ CLS 5502016
MERCEDES-BENZ CLS 63S2016
MERCEDES-BENZ CLS5502011 to 2015
MERCEDES-BENZ CLS632012 to 2015
MERCEDES-BENZ CLS63S2014 to 2015
MERCEDES-BENZ E5502011 to 2016
MERCEDES-BENZ E632011 to 2016
MERCEDES-BENZ G5502011
MERCEDES-BENZ G5502013 to 2016
MERCEDES-BENZ G632013 to 2016
MERCEDES-BENZ GL5502011 to 2016
MERCEDES-BENZ GLE550E2016
MERCEDES-BENZ GLE63S2016
MERCEDES-BENZ ML5502011 to 2015
MERCEDES-BENZ ML632011
MERCEDES-BENZ S5502011 to 2016
MERCEDES-BENZ S550 4MATIC2016
MERCEDES-BENZ SL5502011
MERCEDES-BENZ SL5502013 to 2016

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