How to Change the Transmission Fluid on a 2018-2023 Kia Stinger
Step-by-step drain-and-fill guide with tools, parts, torque specs, and fluid level check tips
How to Change the Transmission Fluid on a 2018-2023 Kia Stinger
Step-by-step drain-and-fill guide with tools, parts, torque specs, and fluid level check tips for 2018, 2019, 2020, 2021, 2022, 2023
🔧 Transmission Fluid - Drain and Fill
Changing the transmission fluid on your Stinger helps protect the transmission from heat and wear. This service is usually done as a drain-and-fill, then the level is set at a specific fluid temperature for the best result.
Difficulty Level: Intermediate | Estimated Time: 2-3 hours
⚠️ Safety & Precautions
- Work on a level surface and keep the parking brake set.
- Transmission fluid can be hot. Let the car cool before draining.
- Do not overfill. This transmission uses a temperature-based level check.
- Use jack stands. Do not rely on a floor jack alone.
- Battery disconnect is not required for this service.
🔧 Required Tools
You'll need the following tools for this repair:
- Floor jack (rated 3-ton minimum)
- Jack stands (rated for vehicle weight)
- Wheel chocks
- Safety glasses
- Nitrile gloves
- Ratchet
- 8mm socket
- 10mm socket
- 24mm socket
- Torque wrench
- Fluid transfer pump
- Drain pan
- Funnel with long hose
- Scan tool with transmission temperature data (specialty)
- Shop towels
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Automatic transmission fluid SP-IV RR - Qty: 6-7 quarts
- Transmission drain plug washer - Qty: 1
- Transmission fill plug washer - Qty: 1
📋 Before You Begin
- Park on level ground and chock the wheels.
- Raise the vehicle and support it securely on jack stands.
- Warm the transmission slightly with a short drive if the fluid is cold, then shut the engine off.
- For the fluid level check, you will need transmission fluid temperature data from a scan tool.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Raise and secure the vehicle
- Use the floor jack to lift the vehicle.
- Set the vehicle on jack stands at the factory lift points.
- Keep the vehicle level if possible. Level matters for fluid checks.
Step 2: Remove the lower splash shield
- Use the 10mm socket and ratchet to remove the lower cover fasteners.
- Set the shield aside.
Step 3: Drain the old transmission fluid
- Place the drain pan under the transmission.
- Use the 24mm socket to remove the drain plug.
- Let the fluid drain fully.
- Install a new transmission drain plug washer.
- Reinstall the drain plug and Torque to 39 Nm (29 ft-lbs).
Step 4: Refill the transmission
- Locate the fill plug on the transmission case.
- Use the 24mm socket to remove the fill plug.
- Use the fluid transfer pump to add Automatic transmission fluid SP-IV RR through the fill hole.
- Add the same amount you drained, then prepare for the level check.
- Install a new transmission fill plug washer after final level set.
Step 5: Set the fluid level
- Start the engine with the vehicle still level and foot on the brake.
- Use the scan tool with transmission temperature data to monitor ATF temperature.
- Shift slowly through P-R-N-D and back to P, pausing a few seconds in each position.
- With the engine idling, remove the level/fill check plug using the 24mm socket.
- When fluid temperature is in the correct range, a small stream or drip should come out. Add fluid until it becomes a steady drip.
- Reinstall the plug and Torque to 39 Nm (29 ft-lbs).
Step 6: Reinstall the splash shield
- Reinstall the lower cover using the 10mm socket and ratchet.
- Lower the vehicle carefully.
✅ After Repair
- Check for leaks around the drain and fill plugs.
- Test drive the vehicle and verify smooth shifts.
- Recheck for leaks after the drive.
- Dispose of used transmission fluid properly at a recycling center.
💰 DIY vs Shop Cost
Shop Cost: $220-$380 (parts + labor)
DIY Cost: $90-$160 (parts only)
You Save: $130-$220 by doing it yourself!
Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.5-2.5 hours.
🎯 Ready to get started?
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