2006 BMW X5 Owner's Manual - Page 154

154nEngine oil Coolant Do not open the cooling system when the engine is hot. Escaping coolant can cause burns.< Coolant is comprised of water and coolant additive. Not all commercially available additives are suitable for your BMW. Your BMW Sports Activity Vehicle center knows which additives are suitable. Viscosity ratings Viscosity is the oil flow rating as established in SAE classes. The selection of the correct SAE class depends on the climatic conditions in the area where you typically drive your BMW. Approved oils are in SAE classes 5W-40 and 5W-30.< These oils may be used for driving in all ambient temperatures. Use only suitable additives, otherwise you could damage your Checking coolant level engine. The additives can be harmful to 1. The engine must be at ambient temyour health.< perature. 2. Start by turning the cap of the expanAlways observe all applicable sion tank counterclockwise. Pause to environmental rules and regulaallow any accumulated pressure to tions when disposing of coolant addiescape, then open. tives.< 3. The coolant level is correct when the end of the red float is aligned with the upper edge of the filler opening, refer to the arrow in the illustration, or max. 0.8 in/2 cm higher, i. e. up to the mark on the float, refer also to the schematic diagram, next to the cap. 530us102 Online Edition for Part No. 01 41 0 159 867 - © 07/05 BMW AG