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Recall 15V652000

Engine Stalls Coming To A Stop

Recall Details

The engine may shut down and not automatically restart as expected with normal function of the "ECO-Start" system when coasting to a stop, such as at a traffic signal.  Dealers will update the engine control unit software free of charge to resolve the concern.

Our Quick Take

The engine may stall when slowing down to a stop, such as when coming to a stop sign or traffic light. This could be misinterpreted as normal function of the "ECO-Start" function which shuts down the engine when stopping to save on fuel consumption.  Stalling of the engine without restart would lead to possible loss of vehicle control.

What Should You Do?

Recalls on your Mercedes-Benz must be performed by a Mercedes-Benz dealership. Mercedes-Benz will begin notifying owners of affected vehicles starting in December 2015. If you do not receive a notification, but wish to check to see if your vehicle is included, please contact one of your local Mercedes-Benz dealerships. They will also check for any other uncompleted recalls on your vehicle. For best results, be prepared to provide your Vehicle Identification Number (VIN) to the service department consultant you speak with.

Engine, October 14, 2015

Original Recall from the NHTSA

Manufacturer's Report Date
October 14, 2015
NHTSA Action Number
N/A
Potential Number of Units Affected
2,956
NHTSA CAMPAIGN ID Number
15V652000
Component
ELECTRICAL SYSTEM , FUEL SYSTEM, GASOLINE
Summary
Mercedes-Benz USA LLC (Mercedes-Benz) is recalling certain model year 2014 S63 AMG sedans and 2015-2016 S63 AMG 4Matic sedans and coupes manufactured May 14, 2013, to September 18, 2015. In the affected vehicles, due to a software error within the engine control unit, the vehicle may stall when coasting to a stop, such as at a traffic light.
Consequence
The vehicle stall may be interpreted by the driver to be a planned shut-down as part of the ECO-Start-function. However, the engine will not restart automatically after releasing the brake pedal, immobilizing the vehicle and increasing the risk of a crash.
Remedy
Mercedes-Benz will notify owners, and dealers will update the engine control unit software, free of charge. The recall is expected to begin on December 8, 2015. Owners may contact Mercedes-Benz customer service at 1-800-367-6372. Mercedes-Benz's number for this recall is 2015100003.
Notify
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.safercar.gov.
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Recall data provided by the National Highway Traffic Safety Administration