2006 Subaru Impreza Owner's Manual - Page 292

Maintenance and service 11-13 Changing the coolant add coolant, remove the cap (with tabs) on the coolant tank on top of the engine. Never attempt to remove the radiator cap until the engine has been shut off and has cooled down completely. Since the coolant is under pressure, you may suffer serious burns from a spray of boiling hot coolant when the cap is removed. 3. After refilling the reserve tank and the radiator, reinstall the caps and check that the rubber gaskets inside the radiator cap are in the proper position. Be careful not to spill engine coolant when adding it. If coolant touches the exhaust pipe, it may cause a bad smell, smoke, and/or a fire. If engine coolant gets on the exhaust pipe, be sure to wipe it off. Do not splash the engine coolant over painted parts. The alcohol contained in the engine coolant may damage the paint surface. B00018 Always add genuine Subaru cooling system conditioner whenever the coolant is replaced. Change the engine coolant and add genuine Subaru cooling system conditioner using the following procedures according to the maintenance schedule. 1. Remove the under cover. 2. Place a proper container under the drain plug and loosen the drain plug. 3. Loosen the radiator cap to drain the coolant from the radiator. Then drain the coolant from the reserve tank. Tighten the drain plug securely. B00019 4. Install the under cover. 1 2 NOTE (Turbo model only) The cap (without tabs) on top of the radiator does not need to be removed. To Non-turbo models 1) Filler neck 2) Fill up to this level B00453 – CONTINUED –