Low outside temperatures
DEF freezes at a temperature of approximately 12 °F (–11 °C). The vehicle is equipped with a DEF preheating system when it leaves the factory. Winter operation is therefore also guaranteed at temperatures below 12 °F (–11 °C).
See also:
Under the Hood
The CLS500 gets a 302-hp, 5.0-liter V-8 that works with a
seven-speed-automatic transmission. The CLS55 AMG has a 469-hp, supercharged
5.5-liter V-8 that's connected to a five-speed-automatic tran ...
Important safety notes
For BlueTEC vehicles only.
DEF is a non-flammable, non-toxic, colorless,
odorless and water-soluble fluid.
Rinse surfaces that have come into
contact with DEF immediately with water or ...
Outside temperature display
The outside temperature display is in the
multifunction display
WARNING
The outside temperature indicator is not
designed to serve as an ice-warning device
and is therefore unsuitable for ...