One problem related to engine and engine cooling has been reported for the 2012 Mercedes Benz S350. The most recently reported issues are listed below.
The contact owns a 2012 Mercedes Benz S350. While driving approximately 65 mph, the vehicle decelerated without warning. The contact then coasted over to the emergency lane and there were no warning lights illuminated. The vehicle restarted; however, the failure recurred multiple times. The vehicle was taken to the dealer for diagnostic testing. The technician diagnosed that the side charge air hose into the throttle actuator was torn and caused the loss of hose pressure. Both the left and right hose needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 50,000.
| Engine Oil Leaking problems | |
| Engine And Engine Cooling problems | |
| Diesel Engine problems |