2002 Mercedes CLK-Class Owner's Manual - Page 218

Applying the brakes very quickly results in maximum BAS assistance. To receive the benefit of the system you must apply continuous full braking power during the stopping sequence. Do not reduce brake pedal pressure. Once the brake pedal is released, the BAS is deactivated. The malfunction indicator lamp for the electronic stability program (ESP) is combined with the BAS malfunction indicator lamp. The BAS/ESP malfunction indicator lamp in the instrument cluster comes on with the electronic key in steering lock position 2 and should go out with the engine running. If the BAS/ESP malfunction indicator lamp comes on permanently while the engine is running, a malfunction has been detected in either system. As a result, it is possible that now only partial engine output will be available. If the BAS malfunctions, the brake system functions in the usual manner, but without BAS. If the charging voltage falls below 10 volts, the malfunction indicator lamp comes on and the BAS is switched off. When the voltage is above this value again, the malfunction indicator lamp should go out and the BAS is operational. With the ABS malfunctioning, the BAS is also switched off. Both malfunction indicator lamps come on with the engine running. If a BAS warning message is displayed, have the BAS or ESP checked at your authorized Mercedes-Benz Center as soon as possible. Driving systems Instruments and controls Operation Driving 215 Instrument cluster display Practical hints Car care Technical data Index