Mazda CX-9 Grand Touring 2009 Manual page 577

Fig. 10: Holding Cooling System Cap
Courtesy of MAZDA MOTORS CORP.
COOLANT RESERVE TANK REMOVAL/INSTALLATION [MZI-3.7]
WARNING:
1. Drain the engine coolant until the coolant reserve tank becomes empty. (See ENGINE COOLANT
REPLACEMENT [MZI-3.7].)
2. Remove in the order indicated in the table.
3. Install in the reverse order of removal.
4. Refill the engine coolant. (See ENGINE COOLANT REPLACEMENT [MZI-3.7].)
5. Inspect for engine coolant leakage. (See ENGINE COOLANT LEAKAGE INSPECTION [MZI-3.7].)
2008 Mazda CX-9 Grand Touring
2008 ENGINE Cooling System (MZI-3.7) - Mazda CX-9
Never remove the cooling system cap or loosen the radiator drain
plug while the engine is running, or when the engine and radiator are
hot. Scalding engine coolant and steam may shoot out and cause
serious injury. It may also damage the engine and cooling system.
Turn off the engine and wait until it is cool. Even then, be very
careful when removing the cap. Wrap a thick cloth around it and
slowly turn it counterclockwise to the first stop. Step back while the
pressure escapes.
When you are sure all the pressure is gone, press down on the cap
using the cloth, turn it, and remove it.