# Service bulletin LI14.40\-N\-071290

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.

- Type: Service bulletin
- NHTSA id: 10178716
- Published by NHTSA: 2020\-08\-24
- Manufacturer's number: LI14.40\-N\-071290
- Manufacturer's date: 2020\-07\-08
- NHTSA component: INTERIOR LIGHTING; ENGINE; ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

Check engine light illuminates in instrument cluster, fault codes P203B31 or P203B49 or P206B31 present in AdBlue\(R\) \(SCR\) control unit

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178716-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178716-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine, Lighting, Software

## Trouble codes named

P203B, P206B

## Vehicles listed

- MERCEDES\-BENZ MERCEDES\-BENZ

JSON: [/v1/bulletins/10178716](/v1/bulletins/10178716)

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