Fuel filler flap
The fuel filler flap is unlocked or locked automatically when you open or close the vehicle with the SmartKey or using KEYLESSGO.
The position of the fuel filler cap is displayed
in the instrument cluster 
. The
arrow
next to the filling pump indicates the side of
the vehicle.
Example: Sedan
1. To open the fuel filler flap
2. To insert the fuel filler cap
3. Tire pressure table
4. Fuel type
See also:
Checking tire pressures manually
To determine and set the correct tire
pressure, proceed as follows:
– Remove the valve cap of the tire that is to
be checked.
– Press the tire pressure gauge securely onto
the valve.
– Read t ...
INTERIOR
It's inside the R-Class where some of those previously mentioned quirks start
rearing their ugly heads.
The R-Class has an electronic gearshift lever on the steering wheel. Putting
the car into ...
Cargo & Towing
When properly equipped with the optional trailer hitch, the GLK350 is rated
to tow up to 3,500 pounds. ...