Materials:
* Set of keys
* Jack
* Car stands
* Container for draining automatic transmission fluid
* New automatic transmission pan gasket
* New automatic transmission fluid
*Torque key
Step by step instructions:
1. Preparing the car
* Put the car on the parking brake.
* Open the hood and disconnect the negative battery terminal.
* Place a jack under the front of the car and raise it.
* Place vehicle stands at appropriate support points.
2. Draining the automatic transmission fluid
* Find the automatic transmission pan. It is usually located at the bottom of the transmission.
* Place a container under the pan and unscrew the drain plug. Wait until the liquid is completely drained.
* Close the drain plug and install a new pan gasket.
3. Disconnecting the gearbox
* Disconnect all electrical connectors and pipes from the transmission.
* Remove all bolts securing the transmission to the engine.
* Remove the bolts securing the gearbox to the subframe.
* Perform all steps carefully and consistently.
4. Removing the gearbox
* Place a jack under the transmission to support it.
* Gently slide the transmission rearward to disengage it from the engine.
* Carefully lower the transmission onto the jack.
5. Installation of a new gearbox
* Raise the new gearbox on a jack.
* Carefully attach the gearbox to the engine.
* Tighten the bolts securing the transmission to the engine.
* Tighten the bolts securing the transmission to the subframe.
* Connect all electrical connectors and pipes to the transmission.
6. Filling with automatic transmission fluid
* Using a funnel, pour new fluid into the transmission.
* The fluid level should match the mark on the transmission dipstick.
7. Descent of the car
* Lower the vehicle from the stands.
* Remove the jack from under the gearbox.
8. Final steps
* Connect the negative terminal of the battery.
* Start the engine and check the automatic transmission fluid level. Add fluid if necessary.
* Drive the car and check the gear shift.
Warnings:
* Be careful when working with heavy components such as the transmission.
* Always use appropriate tools and follow safety precautions.
*Do not over-tighten the bolts as this may damage the threads.
*If you have no experience working on cars, seek help from a professional mechanic.