Automatic Transaxle: Maintenance Infiniti M45 II

Changing A/T Fluid

1. Warm up A/T fluid.
2. Stop engine.
3. Remove the tightening bolt for A/T fluid level gauge.
4. Drain A/T fluid from drain plug and refill with new A/T fluid. Always refill same volume with drained fluid. To replace the A/T fluid, pour in new fluid at the charging pipe with the engine idling and at the same time drain the old fluid from the radiator cooler hose return side. When the color of the fluid coming out is about the same as the color of the new fluid, the replacement is complete. The amount of new transmission fluid to use should be 30 to 50% of the stipulated amount. A/T fluid: Nissan Matic Fluid J Fluid capacity: 10.3 Q (10-7/8 US qt, 9-1/8 Imp qt) CAUTION: Use only Nissan Genuine ATF Matic Fluid J. Do not mix with other fluid. Using automatic transmission fluid other than Nissan Genuine ATF Matic Fluid J will cause deterioration in driveability and automatic transmission durability, and may damage the automatic transmission, which is not covered by the warranty. When filling A/T fluid, take care not to scatter heat generating parts such as exhaust. Drain plug: 34 N.m (3.5 kg-m, 25 ft-lb)
5. Run engine at idle speed for 5 minutes.
6. Check fluid level and condition. Refer to " «Checking A/T Fluid»(ref-181179-S06699314042005080100000) ". If fluid is still dirty, repeat step 2 through 5 .
7. Install the removed A/T fluid level gauge in the fluid charging pipe. Level gauge bolt: 5.1 N.m (0.52 kg-m, 45 in-lb)

Scheme 291

1. Warm up engine.
2. Check for fluid leakage.
3. Remove the tightening bolt for A/T fluid level gauge.
4. Before driving, fluid level can be checked at fluid temperatures of 30 to 50°C (86 to 122°F) using "COLD" range on A/T fluid level gauge as follows: Park vehicle on level surface and set parking brake. Start engine and move selector lever through each gear position. Leave selector lever in "P" position. Check fluid level with engine idling. Remove A/T fluid level gauge and wipe clean with lint-free paper. CAUTION: When wiping away the fluid level gauge, always use lint-free paper, not a cloth one. Re-insert A/T fluid level gauge into charging pipe as far as it will go. CAUTION: To check fluid level, insert the A/T fluid level gauge until the cap contacts the end of the charging pipe, with the gauge reversed from the normal attachment conditions. Remove A/T fluid level gauge and note reading. If reading is at low side of range, add fluid to the charging pipe. CAUTION: Do not overfill.
5. Drive vehicle for approximately 5 minutes in urban areas.
6. Make the fluid temperature approximately 65°C (149°F). NOTE: Fluid level will be greatly affected by temperature as shown in figure. Therefore, be certain to perform operation while checking data with CONSULT-II. Connect CONSULT-II to data link connector. Select "MAIN SIGNALS" in "DATA MONITOR" mode for "A/T" with CONSULT-II. Read out the value of "ATF TEMP 1".
7. Re-check fluid level at fluid temperatures of approximately 65°C (149°F) using "HOT" range on A/T fluid level gauge. CAUTION: When wiping away the fluid level gauge, always use lint-free paper, not a cloth one. To check fluid level, insert the A/T fluid level gauge until the cap contacts the end of the charging pipe, with the gauge reversed from the normal attachment conditions as shown.
8. Check fluid condition: If fluid is very dark or smells burned, refer to check operation of A/T. Flush cooling system after repair of A/T. If A/T fluid contains frictional material (clutches, bands, etc.), replace radiator and flush cooler line using cleaning solvent and compressed air after repair of A/T. Refer to "RADIATOR ", "RADIATOR (ALUMINUM TYPE) ".
9. Install the removed A/T fluid level gauge in the fluid charging pipe. Level gauge bolt: 5.1 N.m (0.52 kg-m, 45 in-lb)

Scheme 292

At Low Fluid Temperature

When the A/T fluid temperature drops below the prescribed temperature, in order to speed up the action of each friction element, the line pressure is set higher than the normal line pressure characteristic.

Scheme 293

Fluid leakage and fluid level check

1. Inspect for fluid leakage and check the fluid level. Refer to " «Checking A/T Fluid»(ref-181179-S06699314042005080100000) ".

Fluid condition check

Inspect the fluid condition.

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Scheme 300

1. Inspect the amount of engine oil. Replenish the engine oil if necessary.
2. Drive for about 10 minutes to warm up the vehicle so that the A/T fluid temperature is 50 to 80°C (122 to 176°F). Inspect the amount of A/T fluid. Replenish if necessary.
3. Securely engage the parking brake so that the tires do not turn.
4. Engine start, apply foot brake, and place selector lever in "D" position.
5. While holding down the foot brake, gradually press down the accelerator pedal.
6. Quickly read off the stall speed, then quickly remove your foot from the accelerator pedal. CAUTION: Do not hold down the accelerator pedal for more than 5 seconds during this test.
7. Move the selector lever to the "N" position.
8. Cool down the A/T fluid. CAUTION: Run the engine at idle for at least one minute. Stall speed: 2, 300 - 2, 600 rpm

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1. Inspect the amount of engine oil and replenish if necessary.
2. Drive the car for about 10 minutes to warm it up so that the A/T fluid reaches in range of 50 to 80°C (122 to 176°F), then inspect the amount of A/T fluid and replenish if necessary. NOTE: The automatic fluid temperature rises in range of 50 to 80°C (122 to 176°F) during 10 minutes of driving.
3. After warming up A/T, remove the oil pressure detection plug and install the oil pressure gauge. CAUTION: When using the oil pressure gauge, be sure to use the O- ring attached to the oil pressure detection plug.
4. Securely engage the parking brake so that the tires do not turn.
5. Start the engine, then measure the line pressure at both idle and the stall speed. CAUTION: Keep the brake pedal pressed all the way down during measurement. When measuring the line pressure at the stall speed, Refer to " «STALL TEST»(ref-181179-S24472954592005080100000) ".
6. After the measurements are complete, install the oil pressure detection plug and tighten to the regulation torque below. 5.1 N.m (0.52 kg-m, 45 in-lb)