The problem
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.
The risk
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.
The fix
Dealers will replace the high-pressure fuel pump, free of charge. Owner notification letters were mailed February 9, 2024. Owners may contact MBUSA customer service at 1-800-367-6372.
Recall details
| NHTSA campaign | 23V-878 (23V878000) |
|---|---|
| Manufacturer number | 2024010008 |
| Manufacturer | Mercedes-Benz USA, LLC |
| Component | Engine and engine cooling › Critical fasteners |
| Report date | December 21, 2023 |
| Owners notified | February 9, 2024 |
| Vehicles affected | 7 |
| Initiated by | Manufacturer |
Vehicles covered
Owner complaints about the engine & cooling
Frequently asked questions
Is the recall 23V-878 repair free?
Yes. Mercedes-Benz dealers will fix the problem at no cost: Dealers will replace the high-pressure fuel pump, free of charge. Owner notification letters were mailed February 9, 2024. Owners may contact MBUSA customer service at 1-800-367-6372.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 7 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.