The problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017-2018 Mercedes C300 Cabriolet, C300 4Matic Cabriolet, C43 AMG Cabriolet, C63S AMG Cabriolet, and C63 AMG Cabriolet vehicles. Due to a bonding issue introduced in the production process, the rear beltline trim may separate from the vehicle.
The risk
If the beltline trim were to separate from the vehicle while driving, it could become a road hazard, increasing the risk of a crash.
The fix
MBUSA will notify owners, and dealers will inspect the rear beltline trim and replace the trim if necessary, free of charge. The recall began on September 21, 2018. Owners may contact MBUSA customer service at 1-800-367-6372.
Recall details
| NHTSA campaign | 18V-456 (18V456000) |
|---|---|
| Manufacturer number | 2018070012 |
| Manufacturer | Mercedes-Benz USA, LLC |
| Component | Structure › Body |
| Report date | July 10, 2018 |
| Owners notified | September 21, 2018 |
| Vehicles affected | 10,826 |
| Initiated by | Manufacturer |
Vehicles covered
Owner complaints about the body & structure
Frequently asked questions
Is the recall 18V-456 repair free?
Yes. Mercedes-Benz dealers will fix the problem at no cost: MBUSA will notify owners, and dealers will inspect the rear beltline trim and replace the trim if necessary, free of charge. The recall began on September 21, 2018. 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 10,826 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.