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Mercedes-Benz S 580 Recall 21V843: Engine May Stall Suddenly and Won't Restart

NHTSA campaign 21V843, reported October 29, 2021, 8,669 vehicles potentially affected.

What this recall means for you

Some 2021 Mercedes-Benz S580 vehicles have a software error in the engine control unit that can cause the engine to stall suddenly. Once the engine stalls, the vehicle may not be able to be restarted.

An unexpected engine stall can increase the risk of a crash, particularly if it happens while driving or in traffic. Owners should be aware of this risk and take the recall seriously.

Dealers will update the engine control unit software at no cost to you. Owners were notified by letter mailed January 28, 2022. You can also contact Mercedes-Benz USA customer service at 1-800-367-6372, and you can check your VIN for open recalls to confirm whether your vehicle is affected.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 21V843Mercedes-Benz USA, LLC
Component
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE
Problem
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2021 S580 and Maybach S580 vehicles. An engine control unit software error may cause a sudden engine stall, without the ability to restart the vehicle.
Risk
An engine stall can increase the risk of a crash.
Remedy
Dealers will update the engine control unit software, free of charge. Owners notification letters were mailed on January 28, 2022. Owners may contact MBUSA customer service at 1-800-367-6372.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Affected vehicles

Mercedes-Benz S 5802021