See also:

Redialing
The on-board computer saves the last names or numbers dialed in the redial memory. Press the or button on the steering wheel to select the Tel menu. Press the button to switch to the ...

4MATIC (permanent four-wheel drive)
4MATIC ensures that all four wheels are permanently driven. Together with ESP® and ETS, it improves the traction of your vehicle whenever a drive wheel spins due to insufficient grip. WARNIN ...

Clearing the memory of the integrated garage door opener on the rear-view mirror
– Turn the SmartKey to position 2 in the ignition lock. – Press transmitter buttons 2 and 4. The indicator lamp lights up yellow. – Press and hold transmitter buttons 2 and 4 until the indicato ...