You can open a door from inside the vehicle even if it has been locked. You can only open the rear doors from inside the vehicle if they are not secured by the child-proof locks .
If the vehicle has been locked with the SmartKey or with KEYLESS-GO, opening a door from the inside will trigger the anti-theft alarm system. Switch off the alarm .

■ Front door: pull door handle 2.
If the door is locked, locking knob 1 pops up. The door is unlocked and can be opened.
■ Rear door: pull up locking knob 1 on the relevant rear door.
The rear door is unlocked and can be opened.
ESP® (Electronic Stability Program)
Important safety notes
Observe the "Important safety notes"
section .
WARNING
If ESP® is malfunctioning, ESP® is unable to
stabilize the vehicle. Additionally, further
driving safety s ...
4MATIC (permanent four-wheel drive)
Never tow the vehicle with one axle
raised. This may damage the transfer case.
Damage of this sort is not covered by the
Mercedes-Benz Limited Warranty. All
wheels must remain either on the grou ...
Roof carrier
Important safety notes
WARNING
When you load the roof, the center of gravity
of the vehicle rises and the driving
characteristics change. If you exceed the
maximum roof load, the driving
charact ...