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Service bulletin LI49.20-N-071225

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 id10175233
Published by NHTSA2020-05-18
Manufacturer's numberLI49.20-N-071225
Manufacturer's date2020-04-23
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM; EQUIPMENT

NHTSA's summary

Check engine light on with fault codes P203B31, P203B49, P206B31, P13DF00 present 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

Engine, Equipment and accessories, Exhaust and emissions

Trouble codes named

P13DF, P203B, P206B

Vehicles listed
MERCEDES-BENZ MERCEDES-BENZ

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