The problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2023 GLC 300 4MATIC vehicles. Certain dashboard area bolts may have been insufficiently tightened, potentially causing improper air bag deployment or parts separation during a crash. In addition, the 12-Volt electric auxiliary heater connections may be loose, possibly causing the electrical wiring to overheat.
The risk
An improper air bag deployment increases the risk of injury in a crash. Overheated wiring can increase the risk of a fire.
The fix
Dealers will inspect and tighten the bolts as necessary, free of charge. Owner notification letters were August 23, 2024. Owner may contact MBUSA customer service at 1-877-496-3691.
Recall details
| NHTSA campaign | 24V-520 (24V520000) |
|---|---|
| Manufacturer | Mercedes-Benz USA, LLC |
| Component | Structure › Interior panels › Dashboard |
| Report date | July 8, 2024 |
| Owners notified | August 23, 2024 |
| Vehicles affected | 7 |
| Initiated by | Manufacturer |
Vehicles covered
Owner complaints about the body & structure
Frequently asked questions
Is the recall 24V-520 repair free?
Yes. Mercedes-Benz dealers will fix the problem at no cost: Dealers will inspect and tighten the bolts as necessary, free of charge. Owner notification letters were August 23, 2024. Owner may contact MBUSA customer service at 1-877-496-3691.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 7 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.