WenmarOpen by Wenmar Pro

Service bulletin LI54.21-P-059247

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 id10136036
Published by NHTSA2018-05-07
Manufacturer's numberLI54.21-P-059247
Manufacturer's date2014-06-20
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM; POWER TRAIN

NHTSA's summary

No double-clutching function (exhaust system sound) in transmission modes S and M

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, Exhaust and emissions, Transmission and driveline

Vehicles listed
MERCEDES BENZ CLS2182014
MERCEDES BENZ G4632011 to 2013
MERCEDES-BENZ E2122011 to 2014

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