Changing Car Sealed Transmission Fluid

Introduction

Sealed transmissions, often found in newer vehicles, are designed to be filled with fluid for the lifetime of the vehicle. However, even sealed transmissions benefit from fluid changes, especially as the fluid ages and degrades. This article will guide you through the process of changing the sealed transmission fluid in your car.

Understanding Sealed Transmissions

Sealed transmissions are designed to be maintenance-free, meaning they are sealed with a specific type of fluid that’s supposed to last the life of the car. However, the fluid does age and break down over time, leading to performance issues. While these transmissions are designed to be sealed, there are ways to access the fluid for replacement.

Why Change the Fluid?

Here are some reasons why changing the transmission fluid is beneficial even for sealed transmissions⁚

• Improved Performance⁚ Fresh fluid reduces friction, improving gear shifting and overall performance.
• Longer Lifespan⁚ Replacing old fluid prevents damage to internal components, extending the transmission’s lifespan.
• Reduced Wear and Tear⁚ New fluid lubricates the internal components, reducing wear and tear.
• Prevention of Problems⁚ Regular fluid changes can prevent potential transmission issues before they occur.

When to Change the Fluid

While sealed transmissions are designed to be filled for life, it’s generally recommended to change the fluid every 100,000 miles or after 5-7 years, whichever comes first. However, consult your owner’s manual for specific recommendations for your vehicle.

Changing the Fluid⁚ A Step-by-Step Guide

Important Note⁚ This is a general guide, and specific procedures may vary depending on your car’s make and model. Always consult your owner’s manual for detailed instructions.

1. Gather Necessary Materials⁚
   • New transmission fluid (consult your owner’s manual for the correct type)
   • Drain pan
   • Torque wrench
   • Gloves
   • Safety glasses
   • Jack and jack stands (if necessary)
2. Warm up the Transmission⁚ Drive the car for a few minutes to warm up the fluid. This will make it easier to drain.
3. Locate the Drain Plug⁚ The drain plug is typically located on the bottom of the transmission pan. It may be a hex-shaped bolt.
4. Drain the Fluid⁚ Place the drain pan under the drain plug and carefully loosen the plug; Allow the fluid to drain completely. Note the color and condition of the drained fluid.
5. Replace the Drain Plug⁚ Tighten the drain plug to the manufacturer’s specifications using a torque wrench.
6. Locate the Fill Plug⁚ The fill plug is typically located on the side or top of the transmission. It may be a hex-shaped bolt or a rubber plug.
7. Fill with New Fluid⁚ Slowly pour the new transmission fluid through the fill plug until it overflows. This ensures the transmission is properly filled.
8. Tighten the Fill Plug⁚ Tighten the fill plug to the manufacturer’s specifications using a torque wrench.
9. Start the Engine and Check Fluid Level⁚ Start the engine and allow it to run for a few minutes. Check the fluid level again and add more fluid if necessary.
10. Test Drive⁚ Take the car for a test drive to ensure the transmission is operating correctly.

Important Considerations

• Fluid Type⁚ Use the correct type of transmission fluid recommended by the manufacturer. Incorrect fluid can damage the transmission.
• Safety⁚ Transmission fluid is flammable. Work in a well-ventilated area and wear appropriate safety gear.
• Professional Assistance⁚ If you are unsure about the process or your car’s specific requirements, consult a qualified mechanic.