Rev Up Your Automotive Smarts

DIY Masterclass: Step-by-Step Guide to Changing Transmission Fluid in Your Toyota RAV4 2018

What to know

  • It is typically a 14mm bolt located on the bottom of the transmission pan.
  • Use the 14mm wrench to loosen the drain plug and allow the old fluid to drain out.
  • Apply a thin bead of gasket maker to the new gasket and place it on the transmission pan.

Maintaining your Toyota RAV4’s transmission is crucial for its longevity and optimal performance. Changing the transmission fluid regularly is an essential part of this maintenance routine. This comprehensive guide will walk you through the step-by-step process of how to change transmission fluid in a 2018 Toyota RAV4.

Tools and Materials

Before you begin, gather the following tools and materials:

  • New Toyota WS transmission fluid (4 quarts)
  • Transmission fluid drain pan
  • 14mm wrench
  • 17mm socket and wrench
  • Funnel
  • Rags or paper towels

Safety Precautions

  • Park your RAV4 on a level surface and engage the parking brake.
  • Allow the engine to cool down completely before starting work.
  • Wear gloves and safety glasses for protection.

Step 1: Locate the Transmission Drain Plug

  • Slide under the vehicle and locate the transmission drain plug. It is typically a 14mm bolt located on the bottom of the transmission pan.

Step 2: Drain the Old Fluid

  • Place the drain pan under the drain plug.
  • Use the 14mm wrench to loosen the drain plug and allow the old fluid to drain out.
  • Let the fluid drain completely.

Step 3: Remove the Transmission Pan

  • Once the fluid has drained, use the 17mm socket and wrench to remove the transmission pan bolts.
  • Carefully remove the pan and discard the old gasket.

Step 4: Clean the Transmission Pan and Filter

  • Use rags or paper towels to clean the transmission pan and the filter.
  • Inspect the filter for any debris or damage. If necessary, replace the filter.

Step 5: Install the New Gasket and Pan

  • Apply a thin bead of gasket maker to the new gasket and place it on the transmission pan.
  • Reinstall the transmission pan and tighten the bolts to the specified torque.

Step 6: Add New Transmission Fluid

  • Use the funnel to add new Toyota WS transmission fluid to the transmission.
  • Add approximately 3.5 quarts of fluid.

Step 7: Check the Fluid Level

  • Start the engine and allow it to idle.
  • Shift through all the gears and then back to park.
  • Check the transmission fluid level using the dipstick.
  • Add more fluid if necessary until it reaches the “Hot” mark on the dipstick.

Resetting the Transmission Fluid Life Indicator

  • Turn the ignition to the “On” position but do not start the engine.
  • Press the odometer reset button three times within 10 seconds.
  • Start the engine and let it idle for 10 seconds.
  • Turn the engine off and check the odometer. The transmission fluid life indicator should now be reset.

Tips for Success

  • Use only Toyota WS transmission fluid as specified by the manufacturer.
  • Replace the transmission filter every other fluid change.
  • Check the transmission fluid level regularly and top up as needed.
  • If you notice any leaks or unusual noises from the transmission, seek professional assistance immediately.

Basics You Wanted To Know

Q: How often should I change the transmission fluid in my 2018 Toyota RAV4?
A: Toyota recommends changing the transmission fluid every 60,000 miles under normal driving conditions.

Q: Can I change the transmission fluid myself?
A: Yes, it is possible to change the transmission fluid yourself if you have the necessary tools and experience. However, if you are not comfortable with the task, it is recommended to have it done by a qualified mechanic.

Q: What are the symptoms of low transmission fluid?
A: Symptoms of low transmission fluid include difficulty shifting gears, slipping gears, and grinding noises from the transmission.

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Cars have been my passion from a young age as I enjoyed learning how engines work, spending hours dreaming about the supercars I hoped to own, and I now have my dream job as a product designer for a luxury automaker. In my spare time I love going to car...