See also:

Overview
The on-board computer is activated as soon as you turn the SmartKey to position 1 in the ignition lock. You can control the multifunction display and the settings in the on-board computer using t ...

Using the main loudspeakers
This function is available in conjunction with COMAND. You can use the vehicle loudspeakers to listen to a disc inserted in the rearcompartment drive. To do so, at least one of the rear-compa ...

Brake fluid level
If you notice that the brake fluid level in the brake fluid reservoir has fallen to the MIN mark or less, check the brake system immediately for leaks. Also check the thickness of the brake li ...