Function restrictions
Depending on the DVD, it is possible that certain functions or actions will be temporarily blocked or may not function at all.
As soon as you try to activate these functions
or actions, you will see the 
symbol
in the
display.
See also:
Standard display
Press and hold the
button on the
steering wheel until the Trip menu with
odometer 1 and trip odometer 2 is
shown. ...
Important notes on use
To function properly, BlueTEC exhaust gas
aftertreatment must be operated with the
reducing agent DEF. Adding DEF is one of the
tasks performed during maintenance. Under
normal operating condi ...
Cargo & Towing
When properly equipped with the optional trailer hitch, the GLK350 is rated
to tow up to 3,500 pounds. ...