Mercedes-Benz GL-Class: Introduction - Telephone menu - Menus and submenus - On-board computer and displays - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Introduction

You can establish a Bluetooth® connection to COMAND (see the separate operating instructions).

WARNING A driver's attention to the road must always 
A driver's attention to the road must always be his/her primary focus when driving. For your safety and the safety of others, we recommend that you pull over to a safe location and stop before placing or taking a telephone call. If you choose to use the telephone while driving, please use the handsfree device and only use the telephone when weather, road and traffic conditions permit.
Some jurisdictions prohibit the driver from using a mobile phone while driving a vehicle.
Bear in mind that at a speed of just 30 mph (approximately 50 km/h ), your vehicle is covering a distance of 44 feet (approximately 14 m) every second.

Switch on the mobile phone and COMAND (see the separate operating instructions).
Press the steering wheel to select the Telephone button on the steering wheel to select the Telephone menu.

You will see one of the following display messages in the multifunction display:

Ready or the name of the network provider: the mobile phone has found a network and is ready to receive.
No Service: no network is available, or the mobile phone is searching for a network.

    Accepting a call
    If someone calls you when you are in the Telephone menu, a display message appears in the multifunction display, for example: ► Press the button on the steering wheel to accept an incomi ...

    See also:

    Brake booster
    Check the brake booster function as follows: 1. With the engine off, depress and release the foot brake pedal more than 20 times. When the foot brake pedal movement (distance of travel) rema ...

    Engine protection mode
    The engine has an engine protection mode to reduce the chance of damage if the coolant temperature becomes too high (for example, when climbing steep grades in high temperature with heavy load ...

    Variable voltage control system
    CAUTION ► Do not ground accessories directly to the battery terminal. Doing so will bypass the variable voltage control system and the vehicle battery may not charge completely. &# ...