Servicing: Maintenance Infiniti M45 II

SERVICE INTERVALS

Inspect transmission, transfer case (if equipped) and differential fluid levels every 15,000 miles or 12 months. Change fluid as needed. If towing a trailer, using a camper or a car top carrier, or driving on rough or muddy roads, change fluid every 30,000 miles or 24 months.

OIL COOLER FLUSHING (2004)

DO NOT flush transmission oil cooler. If friction material is detected, replace radiator after transmission repair. Cooler lines must be flushed with cleaning solvent to remove any foreign material.

Scheme 15

Scheme 16

1. Position an oil pan under the automatic transmission's inlet and outlet cooler hoses.
2. Identify the inlet and outlet fluid cooler hoses. (Scheme 15)
3. Disconnect the fluid cooler inlet and outlet rubber hoses from the steel cooler tubes or bypass valve. NOTE: Replace the cooler hoses if rubber material from the hose remains on the tube fitting.
4. Allow any transmission fluid that remains in the cooler hoses to drain into the oil pan.
5. Insert the extension adapter hose of a can of Transmission Cooler Cleaner (P/N 999MP-AM006) into the cooler outlet hose. (Scheme 16) CAUTION: Wear safety glasses and rubber gloves when spraying the Transmission Cooler Cleaner. Spray cooler cleaner only with adequate ventilation. Avoid contact with eyes and skin. Do not breath vapors or spray mist.
6. Hold the hose and can as high as possible and spray Transmission Cooler Cleaner in a continuous stream into the cooler outlet hose until fluid flows out of the cooler inlet hose for 5 seconds.
7. Insert the tip of an air gun into the end of the cooler outlet hose.
8. Wrap a shop rag around the air gun tip and of the cooler outlet hose.
9. Blow compressed air regulated to 70-130 psi through the cooler outlet hose for 10 seconds to force out any remaining fluid
10. Repeat steps 5 through 9 three additional times. See 5 - 9
11. Position an oil pan under the banjo bolts that connect the fluid cooler steel lines to the transmission.
12. Remove the banjo bolts.
13. Flush each steel line from the cooler side back toward the transmission by spraying Transmission Cooler Cleaner in a continuous stream for 5 seconds
14. Blow compressed air regulated to 70-130 psi through each steel line from the cooler side back toward the transmission for 10 seconds to force out any remaining fluid.
15. Ensure all debris is removed from the steel cooler lines.
16. Ensure all debris is removed from the banjo bolts and fittings.
17. Perform «OIL COOLER DIAGNOSIS PROCEDURE»(ref-166940-S31693585242004100600000).

TRANSMISSION FLUID TEMPERATURE SENSOR No. 2

See VALVE BODY ASSEMBLY for removal & installation procedures for transmission fluid temperature sensor No. 2 sensor.