Fuel filler flap
The fuel filler flap is unlocked or locked automatically when you open or close the vehicle with the SmartKey or using KEYLESS-GO.
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.
1 To open the fuel filler flap
2 To insert the fuel filler cap
3 Tire pressure table
4 Fuel type
See also:
Clearing the memory of the integrated garage door opener on the rear-view mirror
X Turn the SmartKey to position 2 in the ignition lock.
X Press and hold transmitter buttons 2 and 4 for approximately 20 seconds until
indicator lamp 1 flashes rapidly. The memory is cleared.
...
Safety, Reliability & Mileage
Because the E-Class has been redesigned, we don't yet have predicted
reliability ratings for this model. Furthermore, the 2010 E-Class hasn't yet
been crash-tested by our preferred source, the Ins ...
Cleaning the paintwork
Scratches, corrosive deposits, areas affected
by corrosion and damage caused by
inadequate care cannot always be completely
repaired. In such cases, visit a qualified
specialist workshop, e.g. ...