2011 Mercedes SL-Class Owner's Manual - Page 273

Replacing bulbs SmartKey with KEYLESS-GO Replacing bulbs Safety notes Safe vehicle operation depends on proper exterior lighting and signaling to a large degree. Correct headlamp adjustment is extremely important. Have headlamps checked and readjusted at regular intervals and when a bulb has been replaced. Contact an authorized Mercedes-Benz Center for headlamp adjustment. X 271 Bulbs and bulb sockets can be very hot. Allow the lamp to cool down before changing a bulb. Keep bulbs out of reach of children. Halogen lamps contain pressurized gas. A bulb can explode if you Rtouch Rdrop or move it when hot the bulb the bulb Rscratch Wear eye and hand protection. Because of high voltage in Xenon lamps, it is dangerous to replace the bulb or repair the lamp and its components. We recommend that you have such work done by a qualified technician. X Pull out batteries =. X Insert new batteries = under contact springs ? with the positive terminal (+) side facing up. X Return battery compartment ; into SmartKey housing until it locks into place. X Slide mechanical key : back into the SmartKey. X Check the operation of the SmartKey as well as the KEYLESS-GO function. i Since replacing bulbs is a technically highly demanding process, we recommend to have them replaced at an authorized Mercedes-Benz Center. i If the headlamps or front fog lamps are fogged up on the inside as a result of high humidity, driving the vehicle a distance with the lights on should clear up the fogging. Z Practical hints X Insert mechanical key : into opening. Press mechanical key : in direction of arrow. Battery compartment ; is unlatched. X Pull battery compartment ; out of the SmartKey housing. G Warning!