The problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 Mercedes-Benz E300, E300 4Matic, E43 AMG 4Matic, E400 4Matic, E63S AMG 4Matic+, and 2019 CLS450 4Matic vehicles. The Occupant Classification System (OCS) may not be properly calibrated, resulting in the front passenger air bag not being deactivated if a child seat is in the front seat.
The risk
If a child seat is in the front seat and the passenger air bag is not deactivated, in the event of a crash, it can increase the risk of injury.
The fix
MBUSA will notify owners, and dealers will replace the front passenger seat cushion, free of charge. The recall began November 26, 2018. Owners may contact MBUSA customer service at 1-800-367-6372.
Recall details
| NHTSA campaign | 18V-515 (18V515000) |
|---|---|
| Manufacturer number | 2018100004 |
| Manufacturer | Mercedes-Benz USA, LLC |
| Component | Air bags › Sensor › Occupant classification |
| Report date | August 3, 2018 |
| Owners notified | November 26, 2018 |
| Vehicles affected | 345 |
| Initiated by | Manufacturer |
Vehicles covered
Plus 1 other model/year combinations not covered on this site.
Owner complaints about the air bags
Frequently asked questions
Is the recall 18V-515 repair free?
Yes. Mercedes-Benz dealers will fix the problem at no cost: MBUSA will notify owners, and dealers will replace the front passenger seat cushion, free of charge. The recall began November 26, 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 345 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.