2010 Mercedes S-Class Owner's Manual - Page 493

What to do if ... Problem ! The yellow ABS indicator lamp comes on while the engine is running. Possible causes/consequences and M Solutions The brake system is still functioning normally but temporarily the ABS, the BAS, the BAS PLUS, the ESC, the hill-start assist system, the HOLD function, the Adaptive Brake Lights, the PRE-SAFE® system, and the PRE-SAFE® Brake are unavailable. The self-diagnosis has not been completed yet. The ATTENTION ASSIST is disabled. The indicator lamp will go out after driving a short distance at a vehicle speed of above 12 mph (20 km/h). If the ABS indicator lamp does not go out: X Continue driving with added caution. Wheels may lock during hard braking, reducing steering capability. X Adjust driving to be consistent with reduced braking responsiveness. X Read and observe messages that may appear in the multifunction display (Y page 452). X 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. The Electronic Brake Proportioning (EBP) switched off due to a malfunction. The ABS, the BAS, the BAS PLUS, the ESC, the hill-start assist system, the HOLD function, the Adaptive Brake Lights, the PRE-SAFE® system, and the PRE-SAFE® Brake are also switched off. The brake system is still functioning normally but without the systems specified above available. The ATTENTION ASSIST is disabled. X Continue driving with added caution. Wheels may lock during hard braking, reducing steering capability. X Adjust driving to be consistent with reduced braking responsiveness. X Read and observe messages that may appear in the multifunction display (Y page 452). X 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. 491 ÷ å ! The yellow ESC warning lamp, the yellow ESC OFF warning lamp, and the yellow ABS indicator lamp come on while the engine is running and an acoustic warning sounds. Z Practical hints