The problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2022-2023 C300 and 2023 AMG C43 vehicles. The ground connections for the electrical wiring harness may not be secured properly, which can result in the electrical wiring harness overheating.
The risk
An overheated wiring harness can increase the risk of a fire.
The fix
Dealers will inspect and repair the ground connections for the electrical wiring harness, as necessary, free of charge. Owner notification letters were mailed August 11, 2023. Owners may contact MBUSA customer service at 1-800-367-6373. MBUSA's numbers for this recall are 2023070016, 2023070017, 2023070018, and 2024070016.
Recall details
| NHTSA campaign | 23V-463 (23V463000) |
|---|---|
| Manufacturer number | 2023070016,17,18,16 |
| Manufacturer | Mercedes-Benz USA, LLC |
| Component | Electrical system › Wiring |
| Report date | June 30, 2023 |
| Owners notified | August 11, 2023 |
| Vehicles affected | 1,558 |
| Initiated by | Manufacturer |
Vehicles covered
Owner complaints about the electrical system
Frequently asked questions
Is the recall 23V-463 repair free?
Yes. Mercedes-Benz dealers will fix the problem at no cost: Dealers will inspect and repair the ground connections for the electrical wiring harness, as necessary, free of charge. Owner notification letters were mailed August 11, 2023. Owners may contact MBUSA customer service at 1-800-367-6373.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 1,558 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.