See also:

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 instrum ...

EASY-ENTRY/EXIT feature (third rowof seats)
Important safety notes WARNING   To help avoid personal injury, the second-row seat backrests must be properly locked either in the upright position or, when using the expanded cargo vo ...

Remote vehicle unlocking
If you have unintentionally locked your vehicle (e.g. the SmartKey is still in the vehicle) and a replacement SmartKey is not available, the vehicle can be opened by a Mercedes-Benz Customer A ...