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Service bulletin LI54.21-P-062006

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 id10169596
Published by NHTSA2019-12-23
Manufacturer's numberLI54.21-P-062006
Manufacturer's date2019-11-21
NHTSA componentENGINE

NHTSA's summary

C63/GTx with M177LS1/178 Check Engine Light on with Misfire DTC's. Engine Running Roughly

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 MERCEDES-BENZ

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