2009 Mercedes S-Class Owner's Manual - Page 299

Practical hints Vehicle status messages in the multifunction display Text messages Safety systems Display messages ABS ABS, ESP Inoperative See Operator's Man. Possible cause/consequence The brake system is still functioning normally but due to a malfunction, the ABS, the BAS, the ESP® and the PRESAFE® system are unavailable. Possible solution X Continue driving with added caution. Wheels may lock during hard braking, reducing steering capability. 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. When the voltage is above the required value again, the ABS, the BAS, the ESP® and the PRESAFE® system are operational again and the message should disappear. X If the message does not disappear: Have the system checked at an authorized MercedesBenz Center as soon as possible. X ABS ABS, ESP Unavailable See Operator's Man. The brake system still functions normally but due to insufficient power supply, the ABS, the BAS, the ESP® and the PRESAFE® system are unavailable. ESP Inoperative See Operator's Manual The brake system is still functioning normally but due to a malfunction the BAS, the ESP® and the PRE-SAFE® system are unavailable. The ABS may not be operational. Continue driving with added caution. Wheels may lock during hard braking, reducing steering capability. 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. Z 297