See also:

Automatic locking feature
The vehicle locks automatically when the ignition is switched on and the wheels of the vehicle are turning at a speed of more than 9 mph (15 km/h). You could therefore be locked out when: - ...

Exterior
On all C-Class models, wedge-shaped styling features a steep rake to the windshield and back window. A familiar Mercedes grille with a three-pointed star insignia atop the sculpted hood sits up fr ...

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 Service menu. Press the or button to select Tire Pressure. ...