2008 Mercedes SL-Class Owner's Manual - Page 290

Operation Engine compartment The coolant level is correct if the level for cold coolant: is up to the upper mark on the bracing rib of the coolant expansion tank (translucent) for warm coolant: is approximately 0.6 in (1.5 cm) higher Add coolant as required. Replace and tighten cap. Windshield washer system and headlamp cleaning system The windshield washer reservoir is located in the engine compartment. Warning! G Washer solvent/antifreeze is highly flammable. Do not spill washer solvent/antifreeze on hot engine parts, because it may ignite and burn. You could be seriously burned. Use the tab to pull cap 1 upwards. Refill the reservoir with MB Windshield Washer Concentrate "MB SummerFit" and water (or commercially available premixed windshield washer solvent/antifreeze, depending on ambient temperatures). ! SL 600 and SL 65 AMG: Only open the cap on coolant expansion tank 1. Never open the cap between the two charge-air coolers. Otherwise, the engine could be damaged. For more information, see "Coolants" ( page 463). 1 Cap for windshield washer reservoir Fluid for the windshield washer system and the headlamp cleaning system is supplied from the windshield washer reservoir. It has a capacity of approximately 7.4 US qt. (7 l). During all seasons, add MB Windshield Washer Concentrate "MB SummerFit" to water. Premix the windshield washer fluid in a suitable container. ! Always use washer solvent/antifreeze where temperatures may fall below freezing point. Failure to do so could result in damage to the washer system/reservoir. ! Only use washer fluid which is suitable for plastic lenses. Improper washer fluid can damage the plastic lenses of the headlamps. For more information, see "Windshield washer system and headlamp cleaning system" ( page 465). 289