# Service bulletin EW \- FSCM SW

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: 10253706
- Published by NHTSA: 2024\-05\-01
- Manufacturer's number: EW \- FSCM SW
- Manufacturer's date: 2024\-04\-12
- NHTSA component: FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM

## NHTSA's summary

IMPORTANT EMISSION EXTENDED WARRANTY INFORMATION In our continuing efforts to assure the proper performance of Mercedes\-Benz products and to enhance the satisfaction of our customers, Mercedes\-Benz USA, LLC \("MBUSA"\) is extending the warranty coverage on the Fuel System Control Module \(FSCM\) software in certain Model Year \("MY"\) vehicles listed below from the original New Vehicle Limited Warranty of 4 years/50,000 miles to 15 years/150,000 miles \(whichever occurs first\) due to the following condition: Under certain circumstances, the FSCM software for the fuel pressure sensor and fuel temperature plausibility check may not meet specifications. As a result, the check engine Malfunction Indicator Lamp \("MIL"\) might illuminate. Please be advised that all repairs being claimed under this extended warranty must have a Quick Test uploaded with the following fault code information and may be audited. P146264 The sensor Low fuel pressure and fuel temperature has a malfunction. There is an implausible signal. \-and/or\- P146364 This error code can be ignored and erased. 'OR' Sensor Low fuel pressure and fuel temperature has a malfunction during calculation of the fuel pressure. There is an implausible signal. All repairs found to be functioning properly or without proper documentation will be returned and the claim debited in full. Only the following damage codes and parts may be claimed for the aforementioned repairs: Damage Codes: 47045 90 Control Unit, Fuel Pump \- Software Parts \(Software\): A0009026661 Please note that damage incurred from abuse, accidents, vandalism or other non\-warrantable causes that are not covered by the New Vehicle Limited Warranty are similarly not covered by this Extended Warranty. No part replacement is covered by this extended warranty.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-10253706-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-10253706-9999.pdf)

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

## Components

Electrical system, Fuel system

## Trouble codes named

P1462, P1463

## Vehicles listed

- 2019 to 2020 MERCEDES\-BENZ A 220
- 2020 MERCEDES\-BENZ AMG A35
- 2020 MERCEDES\-BENZ AMG CLA35
- 2020 MERCEDES\-BENZ AMG CLA45
- 2021 MERCEDES\-BENZ AMG GLA35
- 2021 MERCEDES\-BENZ AMG GLA45
- 2020 to 2021 MERCEDES\-BENZ AMG GLB35
- 2021 MERCEDES\-BENZ AMG GLE53
- 2020 to 2021 MERCEDES\-BENZ AMG GLE63
- 2021 MERCEDES\-BENZ AMG GLE63 S
- 2020 to 2021 MERCEDES\-BENZ AMG GLS63
- 2020 MERCEDES\-BENZ CLA 250
- 2021 MERCEDES\-BENZ GLA 250
- 2020 to 2021 MERCEDES\-BENZ GLB 250
- 2020 to 2021 MERCEDES\-BENZ GLE 350
- 2020 to 2021 MERCEDES\-BENZ GLE 450
- 2020 to 2021 MERCEDES\-BENZ GLE 580
- 2020 MERCEDES\-BENZ GLS 450
- 2020 MERCEDES\-BENZ GLS 580 4MATIC
- 2021 MERCEDES\-BENZ GLS450
- 2021 MERCEDES\-BENZ GLS580
- 2021 MERCEDES\-BENZ MAYBACH GLS600
- 2021 MERCEDES\-MAYBACH GLS 600

JSON: [/v1/bulletins/10253706](/v1/bulletins/10253706)

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