Recall 22V124 affects 14 2021 Mercedes-Benz S 580 vehicles for loose air bag control unit fasteners. Repair is free at any franchised Mercedes-Benz dealer.
Mercedes-Benz is recalling 14 2021 S 580 sedans because the air bag control unit can be improperly secured. The defect can cause unintended air bag or seat belt deployment, or improper deployment in a crash, increasing the risk of a crash or injury; Mercedes-Benz dealers will complete the repair free of charge.
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What's wrong?
The air bag control unit in the 2021 Mercedes-Benz S 580 is the restraint system computer. It reads crash sensors and tells the air bags and seat belt pretensioners when to deploy. The flange nuts hold that control unit firmly to the vehicle body, so the unit stays grounded and positioned correctly when the restraint system has to react.
On these vehicles, the fastening nut torque for the air bag control unit was not set to current production specification during assembly. That means the control unit is not secured as designed. A loose or poorly grounded unit can send the wrong signal, leading to an unintentional air bag or seat belt deployment, or to improper deployment during a crash.
The driver will not receive a warning before this problem. There is no warning sign before failure, so the VIN and dealer inspection are the only way to confirm whether a specific S 580 is included.
Who's affected?
Both air bag system components involve the same flange nut part.
| 2021 Mercedes-Benz S 580 | air bag system |
|---|---|
| 2021 Mercedes-Benz S 580 | air bag system |
| Units affected | 14 |
| Field incidents | NHTSA has logged no field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific sedan is included.
What's the safety risk?
Unintentional or improper air bag or seat belt deployment can increase the risk of a crash or injury. There is no warning sign before the failure, so treat an included VIN as a reason to schedule the recall repair soon and drive with extra care until it is complete. Repair is free at any franchised Mercedes-Benz dealer.
What should I do?
- Check your VIN to confirm your 2021 Mercedes-Benz S 580 is included in this recall.
- Contact a franchised Mercedes-Benz dealer to schedule the free air bag control unit fastening nut inspection and tightening that addresses the unsecured control unit.
- Bring the recall notice if Mercedes-Benz mailed one, or reference recall number 22V124 when you call.
- Call Mercedes-Benz customer service at 1-800-637-6372 with questions about scheduling or recall number 22V124.
- Drive cautiously until the inspection is complete, since an unsecured control unit affects air bag and seat belt deployment.
What happens at the repair
At the dealer, a Mercedes-Benz technician inspects the air bag control unit fastening nuts and tightens them as needed. The recall repair is free, and parts and labor are covered. Out-of-pocket repairs already paid are handled through the new vehicle warranty, not through a separate reimbursement program, because the involved 2021 S 580 vehicles remain under warranty. Ask the service desk how warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| March 4, 2022 | NHTSA published the recall |
|---|---|
| March 11, 2022 | Dealer notification began |
| April 15, 2022 | Owner notification mailed |
| May 3, 2022 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| May 3, 2022 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 22V124?
Recall 22V124 covers 14 2021 Mercedes-Benz S 580 vehicles with an air bag control unit that can be improperly secured. The defect can trigger unintentional air bag or seat belt deployment, or prevent proper deployment in a crash. Mercedes-Benz dealers will inspect and tighten the fastening nuts for free.
What should I do if my 2021 Mercedes-Benz S 580 is on this recall?
Check your VIN to confirm your specific S 580 is included in recall 22V124. If it is, contact a franchised Mercedes-Benz dealer to schedule the air bag control unit inspection. Reference recall number 22V124 and Mercedes-Benz recall number 2022030024 when you call.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects at no cost. For this recall, Mercedes-Benz dealers will inspect the air bag control unit fastening nuts and tighten them when needed free of charge.
What is the safety risk?
The risk is unintentional or improper air bag and seat belt deployment. If the control unit is not secured correctly, restraints can deploy when they should not, or fail to deploy correctly during a crash, increasing the risk of a crash or injury.
When were owners notified about recall 22V124?
Mercedes-Benz mailed owner notification letters on April 15, 2022. If you bought the vehicle used or never received a letter, the VIN decides whether the recall applies. Check your VIN, then contact a franchised Mercedes-Benz dealer if your vehicle is included.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/22V124000 |
|---|---|
| Mercedes-Benz customer service | 1-800-637-6372 |
| NHTSA recall # | 22V124 |
| NHTSA recall # (full) | 22V124000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Quarterly Report (PDF)
- Download Recall Report (PDF)
- Download Owner Notification Letter (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notice (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →