Materials required to replace the automatic transmission filter in a Peugeot 307:
* New automatic transmission filter
* Automatic transmission pan gasket (recommended)
* Transmission fluid (the amount depends on the car model)
* Funnel
* 10 mm socket wrench
* Flat blade screwdriver
* Rags or paper towels
Steps to replace the automatic transmission filter:
1. Remove the engine guard: If installed, unscrew the bolts and remove the engine guard to gain access to the automatic transmission.
2. Drain the transmission fluid: Place a pan under the automatic transmission and unscrew the drain plug using a 10 mm socket wrench. Allow the liquid to drain completely into the pan.
3. Remove the automatic transmission pan: Unscrew the bolts securing the pan to the automatic transmission using a 10 mm socket wrench. Carefully remove the pan and drain the remaining liquid.
4. Remove the old filter: Locate the automatic transmission filter, which is usually a metal mesh attached to a pan. Carefully remove the filter using a flat blade screwdriver or tweezers.
5. Install the new filter: Place the new filter in the pan and tighten it.
6. Install the pan gasket: If you purchased a new pan gasket, apply a thin layer of automatic transmission sealant to the new gasket and install it to the pan.
7. Reinstall the pan: Carefully place the pan in place and tighten the bolts using a 10mm socket wrench. Don’t over-tighten them.
8. Fill the transmission fluid: Using a funnel, pour the required amount of transmission fluid into the transmission. Check the fluid level using the automatic transmission dipstick.
9. Install the engine guard: If you removed the engine guard, install it back in place.
10. Start the engine and check the operation of the automatic transmission: Start the engine and let it idle for several minutes. Shift gears and make sure the automatic transmission operates smoothly.
Note: The time and difficulty of replacing the automatic transmission filter may vary depending on the Peugeot 307 model. If you are not confident in your skills, it is recommended to seek professional help.