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Service bulletin LI14.40-N-072089

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 id10217150
Published by NHTSA2022-08-04
Manufacturer's numberLI14.40-N-072089
Manufacturer's date2022-07-01
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

Complaint Indicator lamp illuminates in instrument cluster, fault codes P203B31, P203B49 and P206B31 present in AdBlue® (SCR) control unit (N118/5). Cause Software for AdBlue® (SCR) control unit (N118/5) Remedy Update AdBlue Control Unit Software

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, Equipment and accessories

Trouble codes named

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.