See also:

DISTRONIC PLUS displays in the speedometer
When you switch on DISTRONIC PLUS, triangle 2 shows the stored speed. For design reasons, the speed displayed in the speedometer may differ slightly from the speed set for DISTRONIC PLUS. I ...

Center console, lower section
  ...

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 ...