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. WARNING&n ...

Important safety notes

DSR is an aid to assist you when driving downhill. It keeps the speed of travel at the speed selected on the on-board computer. The steeper the downhill gradient, the greater the DSR braking eff ...

See also:

Troubleshooting guide
The system should respond correctly to all voice commands without difficulty. If problems are encountered, try the following solutions. Where the solutions are listed by number, try each solution ...

USB memory operation
Audio main operation Open the tray lid and connect a USB memory 1 as illustrated. Then, push the DISC·AUX button repeatedly to switch to the USB memory mode. If the system has been turned ...

Securing hooks
Only use the mounting hooks to secure items of luggage up to maximum of 9 lbs (4 kg) in weight. There are two securing hooks 1 on each side of the cargo compartment. ...