2011 Mercedes GL-Class Owner's Manual - Page 372

370 Vehicle data ! Only add coolant that has been premixed with the desired antifreeze protection. You could otherwise damage the engine. Further information on coolants and on filling can be found in the Mercedes-Benz Specifications for Service Products, MB Approval 310.1, e.g. on the Internet at http://bevo.mercedes-benz.com. You can also consult an authorized MercedesBenz Center. ! Always use a suitable coolant mixture, even in countries where high temperatures prevail. Otherwise, the cooling system will not be sufficiently protected from corrosion, and the boiling point will be too low. If the coolant has antifreeze protection down to -35 ‡ (-37 †), the boiling point of the coolant in the pressurized system is approximately 266 ‡ (130 †). Your vehicle has a range of aluminum components. Use of aluminum components in the engine make it necessary to specifically match the antifreeze/corrosion inhibitor in these systems in order to protect the aluminum parts. Using other antifreeze/ corrosion inhibitors without these characteristics affects the service life. The coolant must be used throughout the year in order to maintain the necessary corrosion protection and provide protection from overheating. In the Service Booklet, you can find information on the intervals for renewal. The renewal interval is determined by the coolant type and the cooling system design. The renewal interval in the Service Booklet is only valid if the coolant is added or renewed with Mercedes-Benz approved products. Therefore, only use MB 326.0 antifreeze/ corrosion inhibitor or another Mercedes-Benz approved product of the same specification. Information on other Mercedes-Benz approved products of the same specification can be obtained at any authorized MercedesBenz Center or on the Internet at http://bevo.mercedes-benz.com. The coolant is checked at every service date at an authorized Mercedes-Benz Center. The antifreeze/corrosion inhibitor concentration in the cooling system should: Rbe at least 50%. This will protect the cooling system against freezing down to around -35 ‡ (-37 †). Rnot exceed 55% (antifreeze protection down to -49 ‡ (-45 †); otherwise, heat will not be dissipated as effectively. If the coolant level is too low, MB 326.0 antifreeze/corrosion inhibitor should be added. Have the cooling system checked for leaks. Windshield 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. X Technical data Use MB Windshield Washer Concentrate MB SummerFit. X At temperatures above freezing: add 1 part MB SummerFit to 100 parts water, e.g. 1.34 fl oz (40 ml) MB SummerFit to 1 gal (4.0 l) of water. X At temperatures below freezing: add 1 part MB SummerFit to 100 parts washer fluid, e.g. 1.34 fl oz (40 ml) MB SummerFit to 1 gal (4.0 l) of water. Vehicle data Vehicle data, GL 350 BlueTEC (164.825) The data quoted here refers specifically to a vehicle with standard equipment. Contact an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels.