See also:

Checking tire pressure electronically
– Make sure that the SmartKey is in position 2 in the ignition lock. – Press the or button on the steering wheel to select the Serv. menu. – Press the or button to select Tire Pressure. ...

Using the SmartKey
The SmartKey must be close to the driver's door handle. •► Point the tip of the SmartKey at the driver's door handle. •► Press and hold the button until the side windows and the ...

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. WARNI ...