See also:

Opening the hood
WARNING Do not pull the release lever while the vehicle is in motion. Otherwise, the hood could be forced open by passing air flow. This could cause the hood to come loose and injure you and ...

High outside temperatures
If DEF heats up to over 122 °F (50 °C) for extended periods, e.g. as a result of direct sunlight on the DEF reservoir, DEF can decompose. Ammonia vapors develop as a result. WARNING When o ...

BlueDIRECT: third-generation direct injection
Direct petrol injection with spray-guided combustion, which Mercedes-Benz was the first car manufacturer to introduce in series production, has been developed further by the engineers into third-g ...