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Mercedes-Benz S550E Recall 15V647: Engine May Fail to Restart After Electric Driving, Causing Stalls

NHTSA campaign 15V647, reported October 13, 2015, 4 vehicles potentially affected.

What this recall means for you

On certain 2015 Mercedes-Benz S550 Hybrid vehicles built between May 13, 2013 and April 22, 2015, the fuel pump may not deliver enough fuel to restart the gasoline engine after the car has been driven in electric mode. If this happens, the vehicle can stall while you are driving.

A sudden stall increases the risk of a crash. Owners should be aware of this issue, especially if their vehicle has been driven in electric mode and then needs the gasoline engine to start again.

Mercedes-Benz USA will notify affected owners, and authorized dealers will update the fuel system control unit software at no cost. The recall is expected to begin in November 2015. To check whether your vehicle is included, contact Mercedes-Benz customer service at 1-800-367-6372 or check your VIN for open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 15V647Mercedes-Benz USA, LLC.
Component
FUEL SYSTEM, GASOLINE:DELIVERY
Problem
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2015 S550 Hybrid vehicles manufactured May 13, 2013 to April 22, 2015. In the affected vehicles, after driving in electric mode, the fuel pump output may be insufficient to restart the gasoline engine and the vehicle will stall.
Risk
A vehicle stall increases the risk of a crash.
Remedy
MBUSA will notify owners, and dealers will update the fuel system control unit software, free of charge. The recall is expected to begin in November 2015. Owners may contact Mercedes-Benz customer service at 1-800-367-6372.
Notes
Owners may also contact the National Highway Traffic Safety Administration's Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153), or go to www.safercar.gov.

Affected vehicles

Mercedes-Benz S550E2015