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Infiniti M45 (Y34). Manual - part 32

PREPARATION

AT-13

Commercial Service Tools

ACS004I5

Tool name

Description

Power tool

Loosening bolts and nuts

Drift
a: 22 mm (0.87 in) dia.

Installing manual shaft oil seals.

PBIC0190E

NT083

AT-14

A/T FLUID

PFP:KLE40

Changing A/T Fluid

ACS00196

Warm up A/T fluid.

Stop engine.

Loosen the level gauge bolt.

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% increase of the stipu-
lated amount.

CAUTION:

●

Use only Genuine Nissan Matic J ATF. Do not mix with other fluid.

●

Using automatic transmission fluid other than Genuine Nissan Matic J ATF will cause deteriora-
tion in driveability and automatic transmission durability, and may damage the automatic trans-
mission, which is not covered by the warranty.

●

When filling A/T fluid, take care not to scatter heat generating parts such as exhaust.

●

Do not reuse drain plug gasket.

Run engine at idle speed for 5 minutes.

Check fluid level and condition. Refer to

AT-14, "Checking A/T Fluid"

. If fluid is still dirty, repeat step 2

through 5.

Install the removed A/T fluid level gauge in the A/T fluid charging pipe.

Tighten the level gauge bolt.

Checking A/T Fluid

ACS00197

Warm up engine.

Check for fluid leakage.

Loosen the level gauge bolt.

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 posi-
tion. 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.

A/T fluid: Genuine Nissan Matic J ATF

Fluid capacity: 10.3 (10-7/8 US qt, 9-1/8 lmp qt)

Drain plug:

: 34 N·m (3.5 kg-m, 25 ft-lb)

Level gauge bolt:

: 5.1 N·m (0.52 kg-m, 45 in-lb)

SCIA4835E

A/T FLUID

AT-15

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.

Drive vehicle for approximately 5 minutes in urban areas.

Make the fluid temperature approximately 65

C (149

F).

NOTE:
Fluid level will be greatly affected by temperature as shown in the 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”.

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 in the figure.

Check fluid condition.

●

If fluid is very dark or smells burned, 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

AT-16, "A/T

Fluid Cooler Cleaning"

and

CO-12, "RADIATOR"

Install the removed A/T fluid level gauge in the fluid charging pipe.

10. Tighten the level gauge bolt.

Level gauge bolt:

: 5.1 N·m (0.52 kg-m, 45 in-lb)

SLIA0016E

SCIA2899E

AT-16

A/T FLUID

A/T Fluid Cooler Cleaning

ACS0064L

Whenever an automatic transmission is replaced, the A/T fluid cooler mounted in the radiator must be
inspected and cleaned.
Metal debris and friction material, if present, can become trapped in the A/T fluid cooler. This debris can con-
taminate the newly serviced A/T or, in severe cases, can block or restrict the flow of A/T fluid. In either case,
malfunction of the newly serviced A/T may result.
Debris, if present, may build up as A/T fluid enters the cooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.

A/T FLUID COOLER CLEANING PROCEDURE

Position an oil pan under the automatic transmission's inlet and outlet cooler hoses.

Identify the inlet and outlet fluid cooler hoses.

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.

Allow any A/T fluid that remains in the cooler hoses to drain into
the oil pan.

Insert the extension adapter hose of a can of the Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.

CAUTION:

●

Wear safety glasses and rubber gloves when spraying
the Transmission Cooler Cleaner.

●

Spray the Transmission Cooler Cleaner only with ade-
quate ventilation.

●

Avoid contact with eyes and skin.

●

Do not breath vapors or spray mist.

Hold the hose and can as high as possible and spray the Trans-
mission Cooler Cleaner in a continuous stream into the cooler outlet hose until fluid flows out of the cooler
inlet hose for 5 seconds.

Insert the tip of an air gun into the end of the cooler outlet hose.

Wrap a shop rag around the air gun tip and of the cooler outlet
hose.

Blow compressed air regulated to 5 - 9 kg/cm

(70 - 130 psi) through the cooler outlet hose for 10 sec-

onds to force out any remaining fluid.

10. Repeat steps 5 through 9 three additional times.

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 the Transmission

Cooler Cleaner in a continuous stream for 5 seconds.

SCIA3830E

SCIA3831E

SCIA3832E

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