2009 Mercedes R-Class Owner's Manual - Page 344

Practical hints What to do if ... Problem ; (USA only) 3 (Canada only) v The red brake warning lamp comes on while driving. In addition, the yellow ABS malfunction indicator lamp, and the yellow ESP® warning lamp come on and an acoustic warning sounds. ; (USA only) 3 (Canada only) The red brake warning lamp comes on while driving and you hear a warning sound. ; (USA only) 3 (Canada only) The red brake warning lamp comes on while the engine is running and you hear a warning sound. Possible cause/consequence The Electronic Brake Proportioning (EBP) switched off due to a malfunction. The ABS, the BAS, and the ESP® are also switched off. Suggested solutions 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. You are driving with the parking brake engaged. X Release the parking brake. There is insufficient brake fluid in the reservoir. X X X X Risk of accident! Do not drive any further. Stop the vehicle in a safe location as soon as it is safe to do so. Engage the parking brake. Read and observe messages that may appear in the multifunction display (Y page 305). Contact an authorized Mercedes-Benz Center. Do not add brake fluid! This will not solve the problem. 342