2011 Mercedes R-Class Owner's Manual - Page 187

Driving systems Highway level ! Make sure that there is enough ground clearance when the vehicle is being lowered. It could otherwise hit the ground, damaging the underbody. The vehicle level is automatically raised from high-speed level to highway level if the speed drops below 40 mph (64 km/h). The vehicle level is automatically set to highway level if you are driving faster than 25 mph (40 km/h). 185 4MATIC (permanent four-wheel drive) X X Make sure that the doors are closed. Start the engine. Press button :. Indicator lamp ; flashes. The vehicle is lowered to highway level. If indicator lamp ; is lit: X 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. G Warning! While the adjustment is taking place, a message appears in the multifunction display, e.g.: If a drive wheel is spinning due to insufficient traction: RWhile If you press the V, U, * or & button on the multifunction steering wheel, the message will disappear. Once highway level has been reached, indicator lamp ; goes out. A message appears in the multifunction display for approximately five seconds, e.g.: driving off, apply as little throttle as possible. RWhile driving, ease up on the accelerator pedal. RAdapt your speed and driving style to the prevailing road conditions. Failure to observe these guidelines could cause the vehicle to skid. The 4MATIC cannot prevent accidents resulting from excessive speed. ! Never tow the vehicle with one axle raised. This may damage the transfer case. Damage of this sort is not covered by the Mercedes-Benz Limited Warranty. All wheels must remain either on the ground or be fully raised. Observe the instructions for towing the vehicle with all wheels in full contact with the ground. i In wintry driving conditions, the maximum effect of 4MATIC can only be achieved if Z Driving and parking