2009 Mercedes CLS-Class Owner's Manual - Page 205

Operation Engine compartment X Using a rag, turn cap 1 slowly approximately 1/2 counterclockwise to release any excess pressure. Continue turning cap 1 counterclockwise and remove it. The coolant level is correct if the level Rfor Washer system and headlamp cleaning system G Warning! 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. ! Always use washer solvent/antifreeze where temperatures may fall below freezing point. Failure to do so could result in damage to the washer system/fluid reservoir. ! Only use washer fluid which is suitable for plastic lenses. Improper washer fluid can damage the plastic lenses of the headlamps. ! Do not use distilled or de-ionized water in the washer fluid reservoir. Otherwise, the washer fluid level sensor could be damaged. 1 Cap for washer fluid reservoir X cold coolant: reaches marking bar 3 in expansion tank 2 (1.5 cm) higher Rfor warm coolant: is approximately 0.6 in X X Add coolant as required. Replace and tighten cap 1. For more information on coolant, see the "Technical data" section (Y page 347). Fluid for the washer system and the headlamp cleaning system is supplied from the washer fluid reservoir. During all seasons, add MB Windshield Washer Concentrate "MB SummerFit" to water. Premix the washer fluid in a suitable container. X Opening washer fluid reservoir: Pull tab of cap 1 upwards. X Refill the washer fluid reservoir with MB Windshield Washer Concentrate "MB SummerFit" and water (or commercially available premixed washer solvent/antifreeze, Z 203