The National Highway Transportation Safety Administration is currently handling 26 recall investigations that will affect nearly 150,000 2014 Mercedes-Benz vehicles. The latest recall affects the E350 sedans from 2013 to 2015. The issue is a defective rubber seal that can stick to the hood of the car when the hood is opened and then fall into the engine bay once the hood has been closed. If this happens, the car may catch on fire if the seal touches the exhaust system.
If you are currently driving a Mercedes-Benz, then you may want to check with the NHTSA to see if your car has been recalled.