# 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.

- Type: Service bulletin
- NHTSA id: 10167075
- Published by NHTSA: 2019\-11\-04
- Manufacturer's number: LI49.20\-P\-057101
- Manufacturer's date: 2014\-04\-17
- NHTSA component: ELECTRICAL 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

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10167075-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10167075-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- MERCEDES\-BENZ MERCEDES\-BENZ

JSON: [/v1/bulletins/10167075](/v1/bulletins/10167075)

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