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 opening the filler cap of the DEF tank
ammonia gas vapors may escape. Refill DEF
in a well ventilated area only. Ammonia gas
vapors have a pungent odor and are
particularly irritating for your skin, mucous
membranes, and eyes. Inhaling ammonia gas
vapors will cause burning eyes, nose, and
throat, as well as coughing and watering eyes.
See also:
Ride & Handling
The M-Class evokes the S-Class' driving experience in a few ways. For one, it
feels especially substantial and planted when cruising on the highway, enhancing
driver confidence and lowering drivin ...
Seat belt retractor
The inertia reel can be used to secure light
loads against the side wall of the cargo
compartment to prevent them from moving
around.
► Insert two mounting elements 2 into a
loading rai ...
Safety
The G500’s antilock brakes have Brake Assist for automatic full-power braking
in panic stops. Electronic brake-force distribution (EBD) enhances stability
when braking in curves. ...