Recall 21V704 affects 7 2021 Mercedes-Benz S 580 vehicles for a suction jet pump defect. Repair is free at any franchised Mercedes-Benz dealer.
Mercedes-Benz is recalling 7 2021 S 580 vehicles because the suction jet pump in the fuel tank can have a loose or missing nozzle. A failed pump can stall the engine and increase the risk of a crash; Mercedes-Benz dealers will complete the recall repair free of charge.
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What's wrong?
The fuel tank in the 2021 Mercedes-Benz S 580 contains a suction jet pump, a small pump that helps move fuel inside the tank so the main fuel pump can maintain pressure to the engine. When the tank and pump are built correctly, fuel stays available to the engine as the fuel level and vehicle motion change.
On affected S 580 vehicles, the suction jet pump was built with a nozzle that is loose or missing because of a supplier manufacturing error. Without that nozzle secured, the pump does not move fuel as designed. The main fuel pump can lose the fuel pressure the engine needs, which can cause the engine to stall and remove propulsion while driving.
There is no warning sign before failure. Mercedes-Benz reported that the driver will not receive an advance warning because of how this failure happens.
Who's affected?
| 2021 Mercedes-Benz S 580 | fuel system |
|---|---|
| 2021 Mercedes-Benz S 580 | fuel system |
| Units affected | 7 |
| Field incidents | NHTSA has logged 1 field incident to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific sedan.
What's the safety risk?
An engine stall can cut power without advance warning and increase the risk of a crash. If your 2021 S 580 loses power, steer to a safe place, stop, and call the dealer before driving again. Schedule the recall repair soon, because there is no warning sign before the failure. 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 fuel-tank inspection and suction-jet-pump replacement if needed, fixing the pump-nozzle issue that can stall the engine.
- Bring the recall notice if Mercedes-Benz mailed one. If not, reference recall number 21V704 when you call.
- Drive cautiously until the repair, and pull over safely if the engine stalls.
What happens at the repair
At the dealer, a Mercedes-Benz technician inspects the fuel tank and suction jet pump, then replaces the fuel tank assembly, including the suction jet pump, if the inspection shows it is needed. Parts and labor are free under the recall. Out-of-pocket repairs already paid are handled through the existing new vehicle warranty, not through a separate reimbursement program, since the involved vehicles remain under warranty. Ask the service desk how warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| September 10, 2021 | NHTSA published the recall |
|---|---|
| September 17, 2021 | Dealer notification began |
| October 26, 2021 | Owner notification mailed |
| October 26, 2021 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| October 26, 2021 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 21V704?
Recall 21V704 covers 7 2021 Mercedes-Benz S 580 vehicles with a suction jet pump in the fuel tank that has a loose or missing nozzle. The pump can fail, causing an engine stall and increasing crash risk. Mercedes-Benz dealers will inspect the fuel tank and replace it for free when needed.
What should I do if my 2021 Mercedes-Benz S 580 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 21V704. If it is included, contact a franchised Mercedes-Benz dealer and ask for recall 21V704. The dealer will inspect the fuel tank and replace the fuel tank with the suction jet pump for free when needed.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Mercedes-Benz says dealers will inspect and replace the fuel tank, including the suction jet pump, free of charge when the recall applies to your VIN.
What is the safety risk?
The safety risk is an engine stall. In recall 21V704, a loose or missing nozzle in the suction jet pump can cause pump failure, which can stall the engine and increase crash risk. Confirm your VIN, then schedule the free dealer inspection and repair.
When were owners notified about recall 21V704?
Mercedes-Benz mailed owner letters on October 26, 2021. If you bought the S 580 used or never received the letter, the VIN still decides whether the recall applies. Check your VIN, then call a Mercedes-Benz dealer or MBUSA customer service at 1-800-367-6372.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V704000 |
|---|---|
| Mercedes-Benz customer service | 1-800-367-6372 |
| NHTSA recall # | 21V704 |
| NHTSA recall # (full) | 21V704000 |
Source documents
-
Download Quarterly Report (PDF) - Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (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 →