2011 Mercedes GLK-Class Owner's Manual - Page 158
2011 Mercedes GLK-Class Manual
Page 158 highlights
156 Towing a trailer ! 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 you use winter tires (M+S tires), with snow chains if necessary. ! When testing the parking brake, operate the vehicle only briefly (for a maximum of ten seconds) on a brake test dynamometer. When doing this, turn the key to position 0 or 1 in the ignition. Failure to do this can cause damage to the drive train or the brake system. ! Function or performance tests may only be performed on a 2-axle dynamometer. If you wish to operate the vehicle on such a dynamometer, please consult an authorized Mercedes-Benz Center beforehand. You could otherwise damage the drive train or the brake system. Information on "Off-road driving"; see . Towing a trailer Notes on towing a trailer Important safety instructions G Warning! Failure to use proper equipment and driving technique can result in a loss of vehicle control when towing a trailer. Improper towing or failure to follow the instructions in this manual can result in vehicle damage and/or serious personal injury. Follow the guidelines below carefully to assure safe trailer operation. Driving and parking Guide lines ; and = show the approximate distance from the rear of the vehicle. Yellow guide line ; indicates a distance of approximately 3 ft (1 m) and red guide line = indicates a distance of approximately 10 in (0.25 m). The distances only apply to objects at ground level. Blue guide line : depicts the width required for the vehicle. It is used to align the vehicle with the edge of the road, e.g. the curb. Off-road driving systems 4MATIC (permanent four-wheel drive) 4MATIC ensures that all four wheels are permanently driven. Together with ESP® and ETS, it improves the traction of your vehicle whenever a drive wheel spins due to insufficient grip. G Warning! If a drive wheel is spinning due to insufficient traction: RWhile 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.