See also:

Underinflated tires
WARNING Follow recommended tire inflation pressures. Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect handling and fuel economy, and are more ...

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. ...

Roadside Assistance button
– Press and hold Roadside Assistance button 1 for more than two seconds. This initiates a call to the Mercedes-Benz Customer Assistance Center. The indicator lamp in Roadside Assistance but ...