# Service bulletin NCU \- HU Update

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: 10240250
- Published by NHTSA: 2023\-08\-02
- Manufacturer's number: NCU \- HU Update
- Manufacturer's date: 2023\-07\-19
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Mercedes\-Benz AG \(“MBAG”\), the manufacturer of Mercedes\-Benz vehicles, has determined that on certain MY 2021\-2024 C\-Class, EQE, EQE SUV, EQS, EQS SUV, GLC, GLE and S\-Class \(206, 295, 294, 297, 296, 254, 167 and 223 platform\) vehicles, the head unit software does not correspond with the latest series production configuration. The update is free of charge and will be carried out in the background. The installation will eliminate software errors for a better entertainment experience. MBUSA will conduct an OTA service campaign. A workshop visit for the customer is not required since remote software updates are automatically downloaded and installed in the customer’s vehicle. The OTA may be validated as successful on the customer’s Mercedes Me connect app under “Over\-the\-Air Vehicle Updates” as either “Software Update MBUX 2.4” or “Software Update Hermes 1.5 E522.8”. If the OTA is successful it will show a green “installed” and date of installation in the Over\-the\-Air update section.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10240250-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10240250-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2021 to 2023 MERCEDES\-BENZ AMG C43
- 2021 MERCEDES\-BENZ AMG C63
- 2021 to 2023 MERCEDES\-BENZ AMG C63 S
- 2023 MERCEDES\-BENZ AMG EQE
- 2022 to 2023 MERCEDES\-BENZ AMG EQS
- 2022 to 2023 MERCEDES\-BENZ AMG EQS 53
- 2021 to 2023 MERCEDES\-BENZ AMG GLC43
- 2021 to 2022 MERCEDES\-BENZ AMG GLC63
- 2021 to 2023 MERCEDES\-BENZ AMG GLC63 S
- 2021 MERCEDES\-BENZ AMG GLE43
- 2021 to 2022 MERCEDES\-BENZ AMG GLE53
- 2023 MERCEDES\-BENZ AMG GLE53 4MATIC\+
- 2021 to 2022 MERCEDES\-BENZ AMG GLE63
- 2021 to 2022 MERCEDES\-BENZ AMG GLE63 S
- 2023 MERCEDES\-BENZ AMG GLE63 S 4MATIC\+
- 2021 MERCEDES\-BENZ AMG S63
- 2021 to 2023 MERCEDES\-BENZ C 300
- 2023 MERCEDES\-BENZ EQE 350\+
- 2023 MERCEDES\-BENZ EQE 500
- 2023 MERCEDES\-BENZ EQE350
- 2023 MERCEDES\-BENZ EQE350\+
- 2023 MERCEDES\-BENZ EQE500
- 2022 MERCEDES\-BENZ EQS 450
- 2022 to 2023 MERCEDES\-BENZ EQS 450\+
- 2022 to 2023 MERCEDES\-BENZ EQS 580
- 2023 MERCEDES\-BENZ EQS450
- 2023 MERCEDES\-BENZ EQS450\+
- 2023 MERCEDES\-BENZ EQS580
- 2021 to 2023 MERCEDES\-BENZ GLC 300
- 2021 MERCEDES\-BENZ GLC 350 E
- 2021 to 2023 MERCEDES\-BENZ GLE 350
- 2021 to 2022 MERCEDES\-BENZ GLE 350 E
- 2021 MERCEDES\-BENZ GLE 400 E
- 2021 to 2023 MERCEDES\-BENZ GLE 450
- 2021 MERCEDES\-BENZ GLE 580
- 2022 to 2023 MERCEDES\-BENZ GLE 580 4MATIC
- 2021 MERCEDES\-BENZ S 500
- 2023 MERCEDES\-BENZ S 500
- 2022 MERCEDES\-BENZ S 500 4MATIC
- 2021 MERCEDES\-BENZ S 560
- 2021 MERCEDES\-BENZ S 580
- 2023 MERCEDES\-BENZ S 580
- 2022 MERCEDES\-BENZ S 580 4MATIC
- 2023 MERCEDES\-BENZ S 580 E
- 2021 MERCEDES\-MAYBACH S 560
- 2021 MERCEDES\-MAYBACH S 580
- 2022 to 2023 MERCEDES\-MAYBACH S 580 4MATIC
- 2023 MERCEDES\-MAYBACH S 680
- 2022 MERCEDES\-MAYBACH S 680 4MATIC

JSON: [/v1/bulletins/10240250](/v1/bulletins/10240250)

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