See also:

2008 Mercedes-Benz C-Class Review
One thing before reading on: Please put down the voodoo dolls and stickpins. The vehicle tested this week gets less than 30 m.p.g. highway, has no batteries hidden under the rear seat and will co ...

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 ...

Important safety notes
WARNING To help avoid personal injury during a collision or sudden maneuver, exercise care when storing objects in the vehicle. Put luggage or cargo in the cargo compartment if possible. Do not p ...