Recall 15V652 covers 3,177 2014-2016 Mercedes-Benz AMG S63 and AMG S63 4MATIC vehicles with vehicle-stalling engine software. Free repair at any franchised Mercedes-Benz dealer.
Mercedes-Benz is recalling 3,177 2014-2016 AMG S63 and AMG S63 4MATIC sedans and coupes because engine-control software can stall the vehicle while coasting to a stop. The engine does not restart automatically after the brake pedal is released, which leaves the vehicle immobilized and increases crash risk; Mercedes-Benz dealers will update the software free of charge.
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What's wrong?
The engine control unit in the 2014-2016 Mercedes-Benz AMG S63 and AMG S63 4MATIC is the computer that manages engine operation. It controls fuel delivery and the shift from fuel-saving coasting back into normal combustion when the car slows for a stop.
On affected vehicles, the software does not handle that transition correctly. As the car comes out of overrun fuel cut-off mode and returns to combustion, the fuel mixture becomes too lean, meaning the engine receives too much air for the amount of fuel being delivered. With certain vehicle adaptations and an open clutch during coasting, that lean mixture can cause the engine to stall when the vehicle is slowing to a stop, such as at a traffic light.
The warning sign is the instrument cluster lighting up the same way it does after an engine shut-down while the ignition remains on. That tells the driver the car is not in ECO Start/Stop mode and needs to be restarted manually.
Who's affected?
Covers both AMG S63 and AMG S63 4MATIC cars across the 2014, 2015, and 2016 model years, with electrical system software and fuel system components in scope.
| 2015 Mercedes-Benz AMG S63 4MATIC | electrical system software |
|---|---|
| 2015 Mercedes-Benz AMG S63 4MATIC | fuel system |
| 2016 Mercedes-Benz AMG S63 4MATIC | electrical system software |
| 2016 Mercedes-Benz AMG S63 4MATIC | fuel system |
| 2014 Mercedes-Benz AMG S63 | electrical system software |
| 2014 Mercedes-Benz AMG S63 | fuel system |
| Units affected | 3,177 |
| Field incidents | NHTSA has logged 1 field incident to date. |
A matching year and model does not confirm inclusion. Check your VIN to confirm whether this recall applies to your specific car.
What's the safety risk?
A stall can look like ECO Start/Stop shut-down, but the engine will not restart automatically when the brake pedal is released. That leaves the vehicle immobilized and increases the risk of a crash. If the instrument cluster warning lamps come on after shut-down with ignition on, restart the engine manually and schedule the software update. Repair is free at any franchised Mercedes-Benz dealer.
What should I do?
- Check your VIN to confirm your 2014-2016 Mercedes-Benz AMG S63 4MATIC or AMG S63 is included in this recall.
- Contact a franchised Mercedes-Benz dealer to schedule the free engine control unit software update that fixes the stall when coasting to a stop.
- Bring the recall notice to the appointment, or reference recall number 15V652 when you call.
- Avoid assuming a stall is the ECO Start function; the engine will not restart automatically after releasing the brake pedal.
What happens at the repair
At the dealer, a Mercedes-Benz technician updates the engine control unit software that controls engine operation during coasting and stops. The update corrects the software error tied to stalling when the vehicle is coasting to a stop, including at a traffic light. The recall repair is available now, and the software update is free under the recall. Ask the service desk to confirm that campaign 15V652, Mercedes-Benz recall 2015100003, is completed on your VIN before you leave.
Timeline
| October 14, 2015 | NHTSA published the recall |
|---|---|
| October 16, 2015 | Dealer notification began |
| December 2, 2015 | Owner notification mailed |
| December 8, 2015 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| December 8, 2015 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 15V652?
Recall 15V652 covers 3,177 2014-2016 Mercedes-Benz AMG S63 4MATIC and AMG S63 vehicles with an engine-control-unit software error. The vehicle can stall while coasting to a stop, and the engine will not restart automatically after the brake pedal is released, increasing crash risk.
What should I do if my 2014-2016 Mercedes-Benz AMG S63 4MATIC or AMG S63 is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 15V652. If it is, contact a franchised Mercedes-Benz dealer to schedule the engine control unit software update. Reference recall number 15V652 or Mercedes-Benz recall number 2015100003 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Mercedes-Benz dealers will update the engine control unit software free of charge. The recall repair began on December 2, 2015.
Is it safe to drive my Mercedes-Benz AMG S63 before the repair?
The recall does not include a do-not-drive order, but the stall risk is real. If the vehicle stalls while coasting to a stop, the engine will not restart automatically after you release the brake pedal. Schedule the free software update with a Mercedes-Benz dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/15V652000 |
|---|---|
| Mercedes-Benz customer service | 1-800-367-6372 |
| NHTSA recall # | 15V652 |
| NHTSA recall # (full) | 15V652000 |
Source documents
-
Download Owner Notification Letter (PDF) - Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Quarterly Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 31, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →