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Service bulletin LI49.20-P-056353

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 id10135857
Published by NHTSA2018-05-07
Manufacturer's numberLI49.20-P-056353
Manufacturer's date2015-06-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA's summary

Heating element of AdBlue tank has malfunction, fault code 20BE1B and/or 20BD1B logged in BlueTec control unit

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 CLS2182014
MERCEDES BENZ G4632011 to 2013
MERCEDES BENZ GLK2042011 to 2014
MERCEDES BENZ GLX1642007
MERCEDES BENZ R2512007
MERCEDES BENZ S2212007
MERCEDES-BENZ CLS2182011 to 2013
MERCEDES-BENZ E2122011 to 2014
MERCEDES-BENZ M1662010 to 2014

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