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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 id10144128
Published by NHTSA2018-09-04
Manufacturer's numberLI54.21-P-062006
Manufacturer's date2018-05-11
NHTSA componentENGINE

NHTSA's summary

C63/GTx 177/178 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 C1902014 to 2016

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