# Service bulletin LI47.10\-P\-079166

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: 11017203
- Published by NHTSA: 2025\-04\-24
- Manufacturer's number: LI47.10\-P\-079166
- Manufacturer's date: 2025\-04\-22
- NHTSA component: FUEL/PROPULSION SYSTEM

## NHTSA's summary

Complaint A pulsating knocking noise \(e.g. clattering\) can be heard underneath the bench seat, particularly in the case of a full tank \(1/1 fill level\). Cause The vibrating air column of the purge flow volume triggers the fill limit vent valve \(FLVV\) to open and close repeatedly when the fuel tank is full. Remedy By reducing the fuel quantity by around 5 liters, the noise can no longer be heard. In isolated cases, the noise can also be amplified by a fuel tank installed under stress and therefore lines adjacent to the body\-in\-white \(above the fuel tank\). In this case, the installation position of the fuel tank and the contact surfaces to the body\-in\-white must be checked. To do so, loosen the fuel tank and refasten it. Please do not replace component parts such as the fuel tank, activated charcoal canister, purge valve or delivery module, as this does not provide a remedy. If a similar noise can be heard with a tank fill level of, for example, 3/4 or 1/4 and not with a full tank \(1/1\), there is a different issue.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11017203-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11017203-9999.pdf)

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

## Components

Fuel system

## Vehicles listed

- 2021 to 2022 MERCEDES\-BENZ AMG GLE53
- 2023 to 2024 MERCEDES\-BENZ AMG GLE53 4MATIC\+
- 2021 to 2024 MERCEDES\-BENZ AMG GLE63
- 2021 to 2022 MERCEDES\-BENZ AMG GLS63
- 2023 to 2024 MERCEDES\-BENZ AMG GLS63 4MATIC\+
- 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/11017203](/v1/bulletins/11017203)

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