SmartKey

See also:

Traction
WARNING The traction grade assigned to this tire is based on straight-ahead braking traction tests, and does not include acceleration, cornering, hydroplaning, or peak traction characteri ...

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

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) • BAS PLUS (Brake Assist System Plus*) ...