Maximize forester performance: essential steps for changing transmission fluid

Changing your Subaru Forester’s transmission fluid is a crucial maintenance task that ensures the smooth and efficient operation of your vehicle’s transmission system. By following this comprehensive guide, you can save money and keep your Forester running at its best.

Materials You’ll Need:

• New Subaru Forester transmission fluid (check your owner’s manual for the recommended type and capacity)
• Drain pan
• Funnel
• 17mm socket wrench
• Torque wrench
• Rags or gloves
• Safety glasses

Safety Precautions:

• Park your Subaru Forester on a level surface and engage the parking brake.
• Allow the engine to cool down before starting any work.
• Wear safety glasses to protect your eyes from fluids.
• Use gloves to protect your hands from hot surfaces and fluids.

Step-by-Step Instructions:

1. Locate the Transmission Drain Plug:

• Slide under the front of your Subaru Forester and locate the transmission drain plug. It is typically a 17mm bolt located on the bottom of the transmission pan.

2. Drain the Old Fluid:

• Place the drain pan under the transmission drain plug.
• Use a 17mm socket wrench to loosen the drain plug, but do not remove it completely.
• Allow the old transmission fluid to drain into the pan.
• Once the fluid has drained, remove the drain plug completely and clean it using a rag.

3. Replace the Drain Plug:

• Apply a small amount of thread sealant to the threads of the drain plug.
• Tighten the drain plug back into the transmission pan using a torque wrench to the specified torque (refer to your owner’s manual).

4. Locate the Transmission Fill Plug:

• Move to the top of the transmission and locate the fill plug. It is typically a 17mm bolt located on the side of the transmission housing.

5. Fill the Transmission with New Fluid:

• Insert a funnel into the transmission fill plug.
• Slowly pour the new transmission fluid into the funnel until it begins to overflow.
• Use a dipstick to check the transmission fluid level and add more fluid as needed.

6. Replace the Fill Plug:

• Tighten the fill plug back into the transmission housing using a torque wrench to the specified torque.

7. Reset the Transmission Fluid Level:

• Start your Subaru Forester and allow it to idle for a few minutes.
• Shift through all the gears and then back to park.
• Check the transmission fluid level again using the dipstick.
• Add or remove fluid as needed to bring the level to the correct range.

Tips for Success:

• Use only Subaru-approved transmission fluid to ensure optimal performance.
• Check the transmission fluid level regularly, especially after long trips or towing heavy loads.
• If you notice any unusual noises or leaks coming from the transmission, have it inspected by a qualified mechanic.
• Changing your transmission fluid regularly will extend the life of your transmission and prevent costly repairs.

Troubleshooting:

• Overfilled Transmission: If you overfill the transmission, it can cause foaming and aeration of the fluid, which can lead to transmission problems. Drain some of the excess fluid until the level is correct.
• Underfilled Transmission: An underfilled transmission can cause the transmission to overheat and wear out prematurely. Add more fluid until the level is correct.
• Leaking Transmission: If you notice a leak coming from the transmission, it is important to have it inspected and repaired as soon as possible. Transmission leaks can cause serious damage to your vehicle.

Popular Questions

Q: How often should I change my Subaru Forester transmission fluid?
A: Subaru recommends changing the transmission fluid every 30,000 to 60,000 miles, depending on your driving conditions.

Q: What type of transmission fluid does my Subaru Forester use?
A: The type of transmission fluid required for your Subaru Forester will depend on the year and model of your vehicle. Refer to your owner’s manual for the recommended type.

Q: Can I change the transmission fluid myself?
A: Yes, you can change the transmission fluid yourself with the right tools and materials. However, if you are not comfortable working on your vehicle, it is best to have the service performed by a qualified mechanic.

Q: What are the symptoms of low transmission fluid?
A: Symptoms of low transmission fluid can include difficulty shifting gears, slipping gears, or a burning smell coming from the transmission.

Q: What happens if I don’t change my transmission fluid regularly?
A: Failure to change your transmission fluid regularly can lead to transmission damage, overheating, and premature failure.