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:
Cleaning genuine wood and trim
elements
– Wipe the wooden trim and trim pieces with
a damp, lint-free cloth, e.g. a microfiber
cloth.
– Heavy soiling: use car care and cleaning
products recommended and approved by
Mercedes-Benz.
...
Trailer towing
When towing a trailer and driving downhill, shift to the lower gear if
the automatic transmission constantly shifts between two gears.
Engaging a lower gear and reducing the speed reduces the ...
Checking the oil level using the oil dipstick
Park the vehicle on a level
surface.
To check the oil level with the engine at
normal operating temperature, switch the
engine off and wait for approximately five
minutes.
Pull oil dipst ...