# Service bulletin LI07.70\-P\-078520

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: 11013077
- Published by NHTSA: 2025\-01\-24
- Manufacturer's number: LI07.70\-P\-078520
- Manufacturer's date: 2025\-01\-18
- NHTSA component: ENGINE; FUEL/PROPULSION SYSTEM

## NHTSA's summary

Complaint Check engine light on. Engine in limp\-home mode. Rough running. Low fuel rail pressure fault code P008700 stored in MRG2 control unit. Additional faults below may be stored in MRG2 control unit: Misfire\- P030000, P030100, P030200, P030300, P030400, P030084, P030004 Mixture adaptation\- P217800 P218762, P017100, P017200, P217700 Injector malfunction\- P02EE00, P02EF00, P02F000, P02F100, P214601, P214901 Cause Gas bubbles forming in low pressure fuel system due to fuel boiling. Remedy Model year 2024\-2025 GLC300 and GLE350 \-Check engine control unit N3/10 for software update. \-Proceed with software update if versions 2549032503 or 2549032603 are found. \-Clear faults and check for any symptoms on road test For all other models or if software is not found in above steps Check if symptom can be reproduced during normal drive cycle. \-If reproducible, diagnose the cause of low pressure in fuel system. \-If not reproducible, drain and refill fuel tank with top tier premium gasoline. Clear faults and check vehicle operation. Software solution release for remaining models/model years to prevent fuel boiling in low pressure system ETA in Q1 2025. \*\*Do not replace parts unless clear part malfunction is determined\*\*

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11013077-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11013077-9999.pdf)

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

## Components

Engine, Fuel system

## Trouble codes named

P0087, P0171, P0172, P02EE, P02EF, P02F0, P02F1, P0300, P0301, P0302, P0303, P0304, P2146, P2149, P2177, P2178, P2187

## Vehicles listed

- 2022 to 2024 MERCEDES\-BENZ C 300
- 2024 MERCEDES\-BENZ GLC 300
- 2024 MERCEDES\-BENZ GLC 300 COUPE
- 2025 MERCEDES\-BENZ GLC 300E
- 2024 MERCEDES\-BENZ GLE 350
- 2025 MERCEDES\-BENZ GLE 350 4MATIC
- 2024 MERCEDES\-BENZ GLE 450E 4MATIC

JSON: [/v1/bulletins/11013077](/v1/bulletins/11013077)

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