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Service bulletin LI49.20-P-057101

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 id10167075
Published by NHTSA2019-11-04
Manufacturer's numberLI49.20-P-057101
Manufacturer's date2014-04-17
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Engine diagnosis warning lamp lights up. Fault code 20B91B, 20B913 (The output for the heating element of the AdBlue pressure line has an electrical fault or an open circuit) is stored in the SCR 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

Electrical system

Vehicles listed
MERCEDES-BENZ MERCEDES-BENZ

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