2009 Mercedes CLK-Class Owner's Manual - Page 68

Safety and security Driving safety systems For more information, see "What to do if ...?" (Y page 309). ESP® G Observe Safety notes, see page 64. The Electronic Stability Program (ESP®) is operational as soon as the engine is running and monitors the vehicle's traction (force of adhesive friction between the tires and the road surface) and handling. The ESP® recognizes when a wheel is spinning or if the vehicle starts to skid. By applying brakes to individual wheels and by limiting the engine output, the ESP® works to stabilize the vehicle. The ESP® is especially useful while driving off and on wet or slippery road surfaces. The ESP® also stabilizes the vehicle during braking and steering maneuvers. The ESP® warning lamp v in the instrument cluster comes on when you switch on the ignition. It goes out when the engine is running. The ESP® warning lamp v in the instrument cluster flashes when the ESP® is engaged. BAS G Observe Safety notes, see page 64. The Brake Assist System (BAS) operates in emergency situations. If you apply the brakes very quickly, the BAS automatically provides full brake boost, thereby potentially reducing the braking distance. X Apply continuous full braking pressure until the emergency braking situation is over. The ABS will prevent the wheels from locking. When you release the brake pedal, the brakes function again as normal. The BAS is then deactivated. G Warning! If the BAS malfunctions, the brake system still functions, but without the additional brake boost available that the BAS would normally provide in an emergency braking maneuver. Therefore, the braking distance may increase. G Warning! Never switch off the ESP® when you see the ESP® warning lamp v flashing in the instrument cluster. In this case proceed as follows: RWhen 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 ESP® cannot prevent accidents resulting from excessive speed. ! Because the ESP® operates automatically, the engine and ignition must be shut off (SmartKey in starter switch position 0 or 1 or KEYLESS-GO start/stop button in position 0 or 1) when the parking brake is being tested on a brake test dynamometer or when the vehicle is being towed with the front axle raised. Active braking action through the ESP® may otherwise seriously damage the brake 66