Mercedes-Benz Recall 21V-483: Seat belts – retractor

Affected: 2021 Mercedes-Benz AMG CLS53, 2021 Mercedes-Benz AMG E53, 2021–2022 Mercedes-Benz AMG E63 and 8 more. Filed with NHTSA on June 25, 2021, covering about 4,917 vehicles.

The problem

Mercedes-Benz, LLC (MBUSA) is recalling certain 2021 G550, AMG G63, E350, E450, AMG CLS53, AMG E53, AMG GT43, AMG GT53, AMG GT63, 2021-2022 CLS450, and AMG E63 vehicles. The rear seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

The risk

An unsecured child restraint system can increase the risk of injury during a crash.

The fix

Dealers will inspect, and replace as necessary, the rear seat belt assemblies, free of charge. Owners notified of the voluntary recall campaign by an interim letter on August 13, 2021. A final letter was mailed on September 24, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.

Recall details

NHTSA campaign21V-483 (21V483000)
Manufacturer number2021080021
ManufacturerMercedes-Benz USA, LLC
ComponentSeat belts › Rear/other › Retractor
Report dateJune 25, 2021
Owners notifiedSeptember 24, 2021
Vehicles affected4,917
Initiated byManufacturer

Vehicles covered

Owner complaints about the seat belts

Frequently asked questions

Is the recall 21V-483 repair free?

Yes. Mercedes-Benz dealers will fix the problem at no cost: Dealers will inspect, and replace as necessary, the rear seat belt assemblies, free of charge. Owners notified of the voluntary recall campaign by an interim letter on August 13, 2021. A final letter was mailed on September 24, 2021.

How do I know if my car is included?

Not every vehicle of the listed model years is affected — the recall covers 4,917 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.