Materials:

* Oil for automatic transmission Toyota WS (about 7 liters)
* Automatic transmission pan gasket
* Automatic transmission filter
* Universal gasket for bolt washers
* Sealant for automatic transmission pan

Tools:

* Set of keys
* Torque wrench
* Pliers for removing clamps
* Lift or jacks

The procedure for a complete oil change in a Lexus IS250 automatic transmission:

1. Raise and secure the vehicle: Raise the vehicle on a lift or place it on jack stands. Make sure it is stable.

2. Drain the oil from the automatic transmission:

– Find the automatic transmission pan under the car.
– Place a container under the drain pan.
– Unscrew the drain plug bolts and drain the oil into a container.
– Allow the oil to drain completely.

3. Remove the automatic transmission pan:

– Unscrew the bolts securing the automatic transmission pan.
– Remove the pan and gasket.
– Clean the tray and magnets from metal shavings and deposits.

4. Replace the automatic transmission filter:

– Determine the location of the automatic transmission filter inside the pan.
– Unscrew the bolts securing the filter.
– Remove the old filter and install a new one.
– Tighten the filter bolts.

5. Install the automatic transmission pan gasket:

– Apply a thin layer of sealant to the new pan gasket.
– Install the gasket on the automatic transmission pan.

6. Install the automatic transmission pan:

– Raise the automatic transmission pan and tighten the bolts. Use a torque wrench and follow the tightening instructions.

7. Fill the automatic transmission with new oil:

– Find the automatic transmission filler plug.
– Fill in new Toyota WS oil through the filler plug.
– The volume of oil added should be about 7 liters.

8. Start the engine and check the oil level:

– Start the engine and let it idle.
– Shift the gear selector through all positions and return to the park position.
– Check the oil level through the inspection hole on the automatic transmission dipstick.
– Add oil if necessary.

9. Resetting the automatic transmission oil aging counter:

– Connect the scanner to the OBD-II diagnostic port.
– Reset the automatic transmission oil aging counter according to the scanner instructions.

10. Drive the car and check:

– Drive the car and check the operation of the automatic transmission.
– Make sure there are no leaks and that the gearbox shifts smoothly.

Additional tips:

* It is recommended to change the automatic transmission oil and filter every 60,000-90,000 km.
* Use only Toyota WS transmission oil recommended for this transmission.
* Tighten the bolts to the correct torque.
* Dispose of used oil and filter in accordance with local environmental regulations.

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