Mercedes-Benz Recall 17V-251: Seat belts – pretensioner

Affected: 2017 Mercedes-Benz AMG C43, 2017 Mercedes-Benz AMG C63, 2017 Mercedes-Benz AMG C63S and 6 more. Filed with NHTSA on April 11, 2017, covering about 12,743 vehicles.

The problem

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017 C300, C300 4Matic, C300 Coupe, C300 Coupe 4Matic, C43 AMG, C43 AMG Coupe, C43 AMG Cabrio, C63 AMG, C63 AMG Coupe, C63S AMG, C63S AMG Coupe, C63S Cabrio, GLC300, GLC300 4Matic, GLC43 AMG, S550, S550 4Matic, S550e, S600, S63 AMG 4Matic, S65, Mercedes-Maybach S550 4Matic, and Mercedes-Maybach S600 vehicles. The affected vehicles have front seat seatbelt pretensioners that may not function properly in the event of a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection," and 209, "Seat Belt Assemblies."

The risk

If the front seat seatbelt pretensioners do not function properly, the seat occupants may not be adequately restrained in the event of a crash, increasing the risk of injury.

The fix

MBUSA will notify owners, and dealers will replace the front seat belts, free of charge. The recall began October 13, 2017. Owners may contact MBUSA customer service at 1-800-367-6372.

Recall details

NHTSA campaign17V-251 (17V251000)
ManufacturerMercedes-Benz USA, LLC
ComponentSeat belts › Pretensioner
Report dateApril 11, 2017
Owners notifiedOctober 13, 2017
Vehicles affected12,743
Initiated byManufacturer

Vehicles covered

Plus 1 other model/year combinations not covered on this site.

Owner complaints about the seat belts

Frequently asked questions

Is the recall 17V-251 repair free?

Yes. Mercedes-Benz dealers will fix the problem at no cost: MBUSA will notify owners, and dealers will replace the front seat belts, free of charge. The recall began October 13, 2017. 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 12,743 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.