# Service bulletin LI82.10\-P\-079175

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: 11017206
- Published by NHTSA: 2025\-04\-24
- Manufacturer's number: LI82.10\-P\-079175
- Manufacturer's date: 2025\-04\-21
- NHTSA component: EXTERIOR LIGHTING; ELECTRICAL SYSTEM

## NHTSA's summary

Complaint Instrument cluster message for rear turn signal lamp despite functioning rear lamp. Fault code in N10/8 \- rear signal acquisition and actuation module in the quick test: B164B49 The rear right turn signal lamp has malfunctioned. There is an internal electrical fault. and/or B164A49 The rear left turn signal lamp has malfunctioned. There is an internal electrical fault. Cause Sensitive fault detection in N10/8 \- rear signal acquisition and actuation module \(BC\_R\) Remedy 1. Check rear lamp for failure of the individual LEDs In the event that an LED fails, the rear lamp must be replaced 2. Check the software release of the Rear SAM \(BC\_R\) and update if necessary 3. Add AO code "o70" via VeDoc 4. Perform SCN coding of Rear SAM \(BC\_R\). 5. If concern occurred on left, use damage code 82C20 73 6. If concern occurred on right, use damage code 82R20 73

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11017206-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11017206-9999.pdf)

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

## Components

Electrical system, Lighting

## Trouble codes named

B164A, B164B

## Vehicles listed

- 2019 to 2022 MERCEDES\-BENZ AMG E53
- 2018 to 2022 MERCEDES\-BENZ AMG E63
- 2018 to 2022 MERCEDES\-BENZ AMG E63S
- 2016 to 2022 MERCEDES\-BENZ AMG GLC43
- 2018 to 2022 MERCEDES\-BENZ AMG GLC63
- 2020 to 2022 MERCEDES\-BENZ AMG GLC63 S
- 2018 to 2019 MERCEDES\-BENZ AMG GLC63S
- 2020 to 2021 MERCEDES\-BENZ AMG GLE43
- 2021 to 2022 MERCEDES\-BENZ AMG GLE53
- 2020 to 2022 MERCEDES\-BENZ AMG GLE63
- 2021 to 2022 MERCEDES\-BENZ AMG GLE63 S
- 2020 to 2022 MERCEDES\-BENZ AMG GLS63
- 2018 to 2019 MERCEDES\-BENZ E 300
- 2020 to 2022 MERCEDES\-BENZ E 350
- 2018 MERCEDES\-BENZ E 400
- 2019 to 2022 MERCEDES\-BENZ E 450
- 2016 to 2017 MERCEDES\-BENZ E300
- 2016 MERCEDES\-BENZ GLC
- 2018 to 2022 MERCEDES\-BENZ GLC 300
- 2018 to 2020 MERCEDES\-BENZ GLC 350
- 2018 MERCEDES\-BENZ GLC 350 E
- 2020 to 2021 MERCEDES\-BENZ GLC 350 E
- 2016 to 2017 MERCEDES\-BENZ GLC300
- 2019 MERCEDES\-BENZ GLC350E
- 2020 to 2022 MERCEDES\-BENZ GLE 350
- 2020 to 2022 MERCEDES\-BENZ GLE 350 E
- 2021 MERCEDES\-BENZ GLE 400 E
- 2020 to 2022 MERCEDES\-BENZ GLE 450
- 2020 to 2021 MERCEDES\-BENZ GLE 580
- 2022 MERCEDES\-BENZ GLE 580 4MATIC
- 2020 MERCEDES\-BENZ GLS 450
- 2022 MERCEDES\-BENZ GLS 450 4MATIC
- 2020 MERCEDES\-BENZ GLS 580 4MATIC
- 2022 MERCEDES\-BENZ GLS 580 4MATIC
- 2021 MERCEDES\-BENZ GLS450
- 2021 MERCEDES\-BENZ GLS580
- 2021 MERCEDES\-MAYBACH GLS 600
- 2022 MERCEDES\-MAYBACH GLS 600 4MATIC

JSON: [/v1/bulletins/11017206](/v1/bulletins/11017206)

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