# Service bulletin LI82.85\-P\-068986

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: 11011767
- Published by NHTSA: 2024\-12\-11
- Manufacturer's number: LI82.85\-P\-068986
- Manufacturer's date: 2024\-12\-06
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Complaint \<p\> After a software update, the MBUX multimedia system \(A26/17\) may incorrectly display the fault code B19C804 "Software tampering has been detected. There is an internal fault". \</p\> \<p\> \</p\> \<p\> Note: If there are no relevant customer complaints, then the DTC can be ignored as it does not directly affect functionality. If there is a customer complaint in addition to the above DTC, further diagnostic measures must be performed. \</p\> Cause The current software release of the MBUX multimedia system \(A26/17\) Remedy \<p\>Update the A26/17 to newest available software release.\</p\>\<p\> \</p\>\<p\>Note: Do not replace any parts.\</p\>

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11011767-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11011767-9999.pdf)

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

## Components

Electrical system

## Trouble codes named

B19C8

## Vehicles listed

- 2019 to 2022 MERCEDES\-BENZ A 220
- 2020 to 2021 MERCEDES\-BENZ AMG A35
- 2020 to 2024 MERCEDES\-BENZ AMG CLA35
- 2020 to 2024 MERCEDES\-BENZ AMG CLA45
- 2021 to 2025 MERCEDES\-BENZ AMG GLB35
- 2017 to 2023 MERCEDES\-BENZ AMG GLC43
- 2018 to 2021 MERCEDES\-BENZ AMG GLC63
- 2020 to 2021 MERCEDES\-BENZ AMG GLC63 S
- 2018 to 2019 MERCEDES\-BENZ AMG GLC63S
- 2021 to 2022 MERCEDES\-BENZ AMG GLE53
- 2023 to 2024 MERCEDES\-BENZ AMG GLE53 4MATIC\+
- 2021 to 2022 MERCEDES\-BENZ AMG GLE63 S
- 2023 to 2024 MERCEDES\-BENZ AMG GLE63 S 4MATIC\+
- 2021 to 2022 MERCEDES\-BENZ AMG GLS63
- 2023 to 2024 MERCEDES\-BENZ AMG GLS63 4MATIC\+
- 2020 to 2024 MERCEDES\-BENZ CLA 250
- 2020 to 2025 MERCEDES\-BENZ GLB 250
- 2018 to 2023 MERCEDES\-BENZ GLC 300
- 2018 MERCEDES\-BENZ GLC 350 E
- 2020 MERCEDES\-BENZ GLC 350 E
- 2016 to 2017 MERCEDES\-BENZ GLC300
- 2019 MERCEDES\-BENZ GLC350E
- 2020 to 2024 MERCEDES\-BENZ GLE 350
- 2025 MERCEDES\-BENZ GLE 350 4MATIC
- 2020 to 2024 MERCEDES\-BENZ GLE 450
- 2024 to 2025 MERCEDES\-BENZ GLE 450E 4MATIC
- 2020 to 2021 MERCEDES\-BENZ GLE 580
- 2022 to 2024 MERCEDES\-BENZ GLE 580 4MATIC
- 2020 MERCEDES\-BENZ GLS 450
- 2022 to 2024 MERCEDES\-BENZ GLS 450 4MATIC
- 2020 MERCEDES\-BENZ GLS 580 4MATIC
- 2022 to 2024 MERCEDES\-BENZ GLS 580 4MATIC
- 2021 MERCEDES\-BENZ GLS450
- 2021 MERCEDES\-BENZ GLS580
- 2021 MERCEDES\-MAYBACH GLS 600
- 2022 to 2024 MERCEDES\-MAYBACH GLS 600 4MATIC

JSON: [/v1/bulletins/11011767](/v1/bulletins/11011767)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20LI82.85-P-068986&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11011767&vehicle=Service%20bulletin%20LI82.85-P-068986)