2005 Mercedes CLK-Class Owner's Manual - Page 450

Technical data Fuels, coolants, lubricants, etc. Model Cooling system Capacity Fuels, coolants, lubricants, etc. CLK 320 approx. 10.7 US qt (10.0 l) MB 325.0 Anticorrosion/Antifreeze CLK 500 approx. 12.8 US qt (12.0 l) Agent CLK 55 AMG approx. 12.8 US qt (12.0 l) CLK 320 CLK 500 CLK 55 AMG 16.35 US gal (62.0 l) 2.11 US gal (8.0 l) 2.11 US gal (8.0 l) 2.64 US gal (10.0 l) Premium unleaded gasoline: Minimum Posted Octane 91 (Avg. of 96 RON/86 MON) R-134a refrigerant and special PAG lubricant oil (never R-12) 6.4 US qt (6.0 l) MB Windshield Washer Concentrate1 Fuel tank including a reserve of Air conditioning system Windshield washer and headlamp cleaning system* 1 Use MB Windshield Washer Concentrate "S" and water for temperatures above freezing point or MB Windshield Washer Concentrate "S" and commercially available premixed windshield washer solvent/antifreeze for temperatures below freezing point. Follow suggested mixing ratios ( page 454). 448