2005 Mercedes SL-Class Owner's Manual - Page 349

Practical hints What to do if ... Left display Right display Reduced braking power! Depress brake pedal fully! Possible cause The SBC brake system is in emergency operation mode. Considerably greater brake pedal force is required and the stopping distance is increased. The maximum speed is limited to 55 mph (90 km/h). Possible solution Do not drive any further. Stop the vehicle and notify an authorized Mercedes-Benz Center. Prevent the vehicle from rolling away by blocking the wheels with wheel chocks or other sizable objects. Call for roadside assistance. Start the engine. The message disappears when sufficient voltage is available T USA only: ; 3 Canada only: Reduced brake effect Start engine The battery has insufficient voltage and cannot supply sufficient power to the SBC brake system. Warning! G Inhalation of exhaust gas is hazardous to your health. All exhaust gas contains carbon monoxide, and inhaling it can cause unconsciousness and lead to death. Do not run the engine in confined areas (such as a garage) which are not properly ventilated. 347