See also:

2008 Mercedes-Benz S-Class Review
When a car costs as much as a house, as the Mercedes-Benz S-Class does, it makes you take a step back. Can a car this expensive really be worth it? After spending a week with an S550, I can tell y ...

Driving on flooded roads
Do not drive through flooded areas. Check the depth of any water before driving through it. Drive slowly through standing water. Otherwise, water may enter the vehicle interior or the engi ...

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 ...