Mercedes-Benz Engine and Engine Cooling: Critical Fasteners

Mercedes-Benz is recalling about 7 vehicles over a problem with the engine and engine cooling. An inadequate seal can allow fuel and oil to leak onto the road, creating a hazard for other road users and increasing the risk of a crash.

Campaign
23V878000
Manufacturer
Mercedes-Benz USA, LLC
Reported
21 December 2023
Vehicles
7
Built between
Not published
Models
3
Recall type
Vehicle
Initiated by
Manufacturer
Owners notified
9 February 2024
Repaired
100%
Unrepaired
0

Does this affect my vehicle?

The manufacturer did not publish a build-date range for this recall, so the model and year list below is the only way to tell whether your vehicle is covered.

  • 2023 Mercedes-Benz GLC 300
  • 2024 Mercedes-Benz GLE 350
  • 2024 Mercedes-Benz GLE 450

Repair progress

The manufacturer reports every reachable vehicle in this recall has been repaired, as of Q4 2025.

100% repaired — 7 of 7 reported

Manufacturers file these figures with NHTSA each quarter. Vehicles the manufacturer could not trace, or that have been scrapped or exported, are counted separately and are not included in the unrepaired figure.

What the defect is

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023 GLC300, 2024 GLE350, and GLE450 vehicles equipped with an M254 engine. The incorrect screws, installed on the high-pressure fuel pump, may prevent a proper seal from forming between the high-pressure fuel pump and the tandem oil pump.

What could happen

An inadequate seal can allow fuel and oil to leak onto the road, creating a hazard for other road users and increasing the risk of a crash. Additionally, a fuel and oil leak in the presence of hot engine components can increase the risk of a fire.

What gets fixed

Dealers will replace the high-pressure fuel pump, free of charge. Owner notification letters were mailed February 9, 2024.

Parts involved

  • fuel lineA2540701200fuel line
  • fuel lineA2540701300fuel line
  • high-pressure lineA2540703300high-pressure line
  • high-pressure pumpA2540700400high-pressure pump
  • screwN000000001392screw

Part numbers are as filed by the manufacturer and are listed for reference. Your dealer will confirm the correct part for your vehicle.

Timeline

  1. Recall reported to NHTSA21 December 2023
  2. Owners notified9 February 2024
  3. Latest repair reportQ4 2025 — 100% repaired

Your rights

A safety recall repair is free. Under US federal law the manufacturer must fix a safety defect at no cost to you — no charge for parts, labor or diagnosis — whether or not you are the original owner. A dealer cannot charge you for recall work, and cannot require you to have bought the vehicle from them.

That entitlement is not unlimited. It applies where the vehicle was first sold less than 15 years before the recall was announced — 5 years for tires. Past that a manufacturer may still do the repair free of charge, and many do, but they are no longer obliged to. This recall was reported on 21 December 2023.

To arrange the repair, contact any franchised dealer for the brand. If a dealer refuses the work or tries to charge for it, you can report that to NHTSA at nhtsa.gov/recalls or on 1-888-327-4236.

Manufacturer contact

Owners may contact MBUSA customer service at 1-800-367-6372.

Official source

Manufacturer's recall number
2024010008
Recalling manufacturer
Mercedes-Benz USA, LLC
Recall initiated by
MFR

Everything on this page — the models listed, the build dates and the repair figures — comes from the manufacturer's filing to NHTSA and describes the vehicle line as a whole, not any individual car. Only the manufacturer can confirm whether a specific vehicle is affected, and whether its recall work has already been carried out. Check yours by VIN and read the official notice at nhtsa.gov/recalls.

Additional notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Check your own vehicle

This page describes the recall, not any one car. To see which recalls cover a specific vehicle, search by make, model and year.

A VIN lookup here identifies your vehicle and shows recalls issued for that make, model and year. It cannot tell you what is still open on your individual car - only the manufacturer knows that. Search by VIN instead, or check your VIN at nhtsa.gov for whether a recall is still open on your individual car.

Same component

Same brand