# Service bulletin LI01.00\-P\-078512

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: 11009517
- Published by NHTSA: 2024\-10\-30
- Manufacturer's number: LI01.00\-P\-078512
- Manufacturer's date: 2024\-10\-25
- NHTSA component: ENGINE

## NHTSA's summary

Complaint Engine is making abnormal noise at idle. May be described as rattle, tapping, or knocking. Cause Various Remedy If necessary compare the noise to a like vehicle and if determined to be abnormal proceed with below steps. Submit a TIPS case to the powertrain team with details from the below checks: Check engine maintenance history and oil level. Determine location where noise is most noticeable on engine. Does noise change with engine RPM? Record a video of the noise. Switch off injectors with XENTRY diagnosis one at a time and check if noise changes. Borescope cylinders with pistons at lowest point of travel and document findings with photos.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11009517-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11009517-9999.pdf)

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

## Components

Engine

## Vehicles listed

- 2022 to 2024 MERCEDES\-BENZ C 300
- 2023 to 2024 MERCEDES\-BENZ GLE 350
- 2024 MERCEDES\-BENZ GLE 400 E
- 2024 MERCEDES\-BENZ GLE 450E 4MATIC

JSON: [/v1/bulletins/11009517](/v1/bulletins/11009517)

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