2013-2018 Nissan Altima CVT Fluid & Filter Replacement

Introduction

This tutorial provides a comprehensive guide to replacing the CVT fluid and transmission filters in a 2013-2018 Nissan Altima. Following the steps outlined here will help ensure your vehicle operates smoothly and efficiently, extending the life of your transmission system.

Step 1: Gather Necessary Tools and Materials

Before starting the fluid and filter replacement, gather all required tools and materials to ensure a smooth process.

Tools Needed

• Socket set
• Torque wrench
• Screwdrivers (flat and Phillips)
• Pliers
• Funnel
• Oil catch pan

Materials Required

• Nissan CVT fluid (refer to your vehicle's manual for specifications)
• Two new transmission filters
• Replacement O-rings
• Clean rags or paper towels

Step 2: Prepare Your Vehicle

Ensure your vehicle is safely positioned and ready for maintenance.

Actions to Take

1. Park on a Level Surface: Ensure the car is on a flat area to prevent fluid spills.
2. Lift the Vehicle: Use jack stands to elevate the vehicle for better access to the undercarriage.
3. Remove Underbody Cover: If applicable, remove any underbody covers to access the transmission area.

Step 3: Drain the Old CVT Fluid

Removing the old fluid is essential before adding new fluid and replacing filters.

Steps to Drain Fluid

1. Locate the Drain Plug: Find the CVT fluid drain plug on the transmission pan.
2. Position Oil Catch Pan: Place the catch pan under the drain plug to collect the fluid.
3. Remove the Drain Plug: Use the appropriate socket to unscrew and remove the drain plug.
4. Allow Fluid to Drain: Let the fluid completely drain into the pan.

Step 4: Replace the Transmission Filters

This step involves replacing the old filters to ensure optimal performance.

Steps for Filter Replacement

1. Remove the Transmission Pan: If necessary, unbolt the transmission pan and carefully lower it.
2. Locate the Filters: Identify the two transmission filters inside the transmission.
3. Remove Old Filters: Gently pull out the old filters. Be cautious of any fluid that may still be in the transmission.
4. Install New Filters: Insert the new filters in their respective locations, ensuring they are seated properly.

Step 5: Reinstall the Transmission Pan

Once the filters are replaced, reinstall the transmission pan.

Steps for Reinstallation

1. Clean the Pan Surface: Wipe down the sealing surface of the transmission and the pan to remove any debris or old gasket material.
2. Install New Gasket or O-ring: If applicable, place a new gasket or O-ring on the pan to ensure a proper seal.
3. Bolt the Pan Back: Reattach the transmission pan and tighten the bolts to the manufacturer’s specified torque settings (refer to the Nissan FSM for torque specs).

Step 6: Fill with New CVT Fluid

Adding new fluid is crucial for the proper functioning of your transmission.

Steps to Fill Fluid

1. Reinstall the Drain Plug: Put the drain plug back in place and tighten it securely.
2. Use a Funnel: Insert a funnel into the CVT fluid fill hole.
3. Add New CVT Fluid: Pour in the new CVT fluid as per the specifications. Monitor the fluid level using the dipstick if available.
4. Check for Leaks: Start the engine and check for any leaks around the pan and filters.

Conclusion

Replacing the CVT fluid and filters in your 2013-2018 Nissan Altima is a manageable DIY task that can enhance your vehicle's performance. Remember to regularly check your transmission fluid level and condition to ensure longevity. For the next steps, consider setting a schedule for regular maintenance and consult the Nissan Factory Service Manual for additional guidance. Happy wrenching!