2011 Mercedes CL-Class Owner's Manual - Page 361

Display messages Display messages Possible causes/consequences and M Solutions 359 AUTO Lamp Function Inoperative USA only: X Switch off the daytime running lamps in the on-board computer (Y page 341). X Switch the lights on and off using the light switch. b Please Switch Off Lights The lights are still switched on when you leave the vehicle. A warning tone also sounds. X Turn the light switch to $ or c. or X If the rear fog lamp is switched on: press the light switch in to the stop. Adaptive Highbeam Assist is faulty. X Visit a qualified specialist workshop. Adaptive High-beam Assist Inoperative Engine Display messages Possible causes/consequences and M Solutions The coolant level is too low. X Add coolant, observing the warning notes when doing so (Y page 407). X If coolant needs adding more often than usual, have the engine coolant system checked at a qualified specialist workshop. + Check Coolant Level See Oper. Manual G Warning Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn if it comes into contact with hot engine parts. You could be seriously burned. ! The coolant level is too low. Avoid making long journeys with too little coolant in the cooling system. The engine will otherwise be damaged. The display messages and the corresponding symbol that indicate that the coolant level is too low must not be ignored. Z On-board computer and displays b The light sensor is faulty. X Visit a qualified specialist workshop.