2008 Mercedes CL-Class Owner's Manual - Page 610

Practical hints What to do if ...? Problem Possible cause/consequence The yellow Antilock The charging voltage has fallen below Brake System (ABS) 10 volts. The ABS has switched off. indicator lamp comes on The battery may not be charged sufficiently. while the engine is running. Suggested solution When the voltage is above this value again, the ABS is operational again and the ABS indicator lamp should go out. If the ABS indicator lamp does not go out: Have the generator (alternator) and the battery checked. When the voltage is above this value again, the ABS is operational again. - ; (USA only) 3 (Canada only) v The red brake warning lamp comes on while the engine is running. In addition, the yellow ABS malfunction indicator lamp, and the yellow ESP® warning lamp come on and an acoustic warning sounds. A malfunction in the Electronic Brake Proportioning (EBP) was detected. The ABS, BAS, ESP® and PRE-SAFE® are also switched off (see messages in multifunction display). The brake system continues to function normally, but without electronic support. Continue driving with added caution. Wheels may lock during hard braking, reducing steering capability. Read and observe messages in the multifunction display ( page 622). Have the system checked at an authorized Mercedes-Benz Center as soon as possible. Failure to follow these instructions increases the risk of an accident. 609