# 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: 11014686
- Published by NHTSA: 2025\-03\-03
- Manufacturer's number: LI07.70\-P\-078520
- Manufacturer's date: 2025\-02\-28
- NHTSA component: 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 C300, CLE300, E350, GLC300 and GLE350 \-Check engine control unit N3/10 for software update. \-Proceed with software update if new software version 2549032303, 2549032403, 2549032503 or 2549032603 are found. \-Clear faults and check for any symptoms on road test early 2024 GLE350 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-11014686-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11014686-9999.pdf)

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

## Components

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 CLE 300
- 2024 to 2025 MERCEDES\-BENZ E 350
- 2025 MERCEDES\-BENZ E 350 4MATIC
- 2023 to 2025 MERCEDES\-BENZ GLC 300
- 2024 MERCEDES\-BENZ GLC 300 COUPE
- 2020 to 2024 MERCEDES\-BENZ GLE 350
- 2025 MERCEDES\-BENZ GLE 350 4MATIC

JSON: [/v1/bulletins/11014686](/v1/bulletins/11014686)

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