Mercedes-Benz Recall 24V-100: Electrical system

The problem

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021-2023 CLS450, E450, E450 All-Terrain, AMG E53, AMG GT43, AMG GT53, and 2021 AMG CLS53 vehicles. The 48-volt ground cable connection located in the engine compartment may not be tightened properly and may result in the ground cable overheating.

The risk

An overheated ground cable increases the risk of a fire.

The fix

Dealers will inspect the 48-volt ground cable connection and repair it as necessary, free of charge. Owner notification letters were mailed March 22, 2024. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2024MMNNNN.

Recall details

NHTSA campaign	24V-100 (24V100000)
Manufacturer number	2024MMNNNN
Manufacturer	Mercedes-Benz USA, LLC
Component	Electrical system › Wiring
Report date	February 9, 2024
Owners notified	March 22, 2024
Vehicles affected	12,191
Initiated by	Manufacturer

Vehicles covered

Owner complaints about the electrical system

Frequently asked questions

Is the recall 24V-100 repair free?

Yes. Mercedes-Benz dealers will fix the problem at no cost: Dealers will inspect the 48-volt ground cable connection and repair it as necessary, free of charge. Owner notification letters were mailed March 22, 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 12,191 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.