The 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.
The risk
A vehicle stall increases the risk of a crash.
The fix
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.
Recall details
| NHTSA campaign | 15V-647 (15V647000) |
|---|---|
| Manufacturer number | 2015100004 |
| Manufacturer | Mercedes-Benz USA, LLC |
| Component | Fuel system, gasoline › Delivery |
| Report date | October 13, 2015 |
| Owners notified | November 9, 2015 |
| Vehicles affected | 4 |
| Initiated by | Manufacturer |
Vehicles covered
Frequently asked questions
Is the recall 15V-647 repair free?
Yes. Mercedes-Benz dealers will fix the problem at no cost: 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.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 4 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.