Displaying service messages
– Switch on the ignition.
– Press 
or
on the steering wheel
to select the Serv. menu.
– Press 
or
to select the ASSYST
PLUS submenu and press 
to confirm.
The service due date appears in the multifunction display.
See also:
Important safety notes
Cruise control maintains a constant road
speed for you. It brakes automatically in order
to avoid exceeding the set speed. On long and
steep downhill gradients, especially if the
vehicle is la ...
Diesel Power
As if the R-Class' styling didn't make it unique enough, it's also one of the
few models in the U.S. with an available clean-diesel engine. The diesel V-6 is
rated 25 percent better in EPA-estimat ...
Going & Stopping
A 268-horsepower, 3.5-liter V-6 is standard. The engine moves the GLK350
rapidly when you want, and the seven-speed automatic transmission consistently
shifts smoothly no matter if you're driving ...