2008 Mercedes SL-Class Owner's Manual - Page 381

Practical hints What to do if ... Left display Right display Brake Wear Possible cause/consequence The brake pads have reached their wear limit. Possible solution Have the brake pads replaced as soon as possible. 2 Warning! G Have brake pad replacement and other work on the electro-hydraulic brake system carried out by qualified technicians only. Contact an authorized Mercedes-Benz Center for further information. The electro-hydraulic brake system must be deactivated prior to working on the system. High pressure is intermittently built up in the system as part of its automatic self-test. In addition, the system is automatically activated when the vehicle is unlocked by remote control, when the driver or passenger door is opened, when the SmartKey in the starter switch is turned to position 1 or the KEYLESS-GO* start/stop button is pressed once, when the brake pedal is depressed or when the parking brake is released. Failure to deactivate the system prior to maintenance will cause brake pistons to extend and brake fluid to leak, which may result in injuries (contusions and acid burns). Extended brake pistons may also cause injury. ! Brake pad thickness must be visually checked by a qualified technician at the intervals specified in the Maintenance Booklet. 380