See also:

Driving safety systems overview
In this section, you will find information about the following driving safety systems: ABS (Anti-lock Braking System) BAS (Brake Assist System) ESP® (Electronic Stability Program) EBD (Ele ...

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 ...

Opening
Switch off the engine. emove the SmartKey from the ignition lock. KEYLESS-GO: open the driver’s door. This switches the ignition to position 0, which corresponds to having removed the SmartK ...