# Service bulletin NCU\-2023070011

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: 10240177
- Published by NHTSA: 2023\-08\-02
- Manufacturer's number: NCU\-2023070011
- Manufacturer's date: 2023\-07\-21
- NHTSA component: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

## NHTSA's summary

Mercedes\-Benz AG \(“MBAG”\), the manufacturer of Mercedes\-Benz vehicles, has determined that on certain Model Year \(“MY”\) 2020 S\-Class \(222 platform\) vehicles, the engine electronics control unit software may not correspond with the current specifications. MBUSA will conduct an Emissions Service Campaign. An authorized Mercedes\-Benz dealer will perform a software update to the engine electronics control unit on the affected vehicles.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10240177-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10240177-9999.pdf)

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

## Components

Electrical system, Engine

## Vehicles listed

- 2020 MERCEDES\-BENZ AMG S65
- 2020 MERCEDES\-BENZ S 450
- 2020 MERCEDES\-BENZ S 550
- 2020 MERCEDES\-BENZ S 560 E

JSON: [/v1/bulletins/10240177](/v1/bulletins/10240177)

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