🔧 Sportage - Transmission Fluid Drain & Fill

This job replaces a portion of your automatic transmission fluid by draining the pan and refilling it, then setting the fluid level at the correct temperature. It’s the safest DIY method on your Sportage (a full “flush” is not recommended unless the shop has the correct equipment and procedure).

Difficulty Level: Intermediate | Estimated Time: 1.5-3 hours

Assumption: performing a basic drain-and-fill (not a full exchange).

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⚠️ Safety & Precautions

• ⚠️ Work on a level surface and support the Sportage on jack stands before going underneath.
• ⚠️ Transmission fluid can be hot. Wear nitrile gloves and safety glasses.
• ⚠️ Keep the engine running only when instructed, and keep hands/tools clear of belts/fans.
• ⚠️ Do not crawl under a vehicle supported only by a jack.
• 🔋 Battery disconnect is not required for a drain-and-fill.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 3-ton minimum)
• Jack stands (rated 3-ton minimum)
• Wheel chocks
• Safety glasses
• Nitrile gloves
• Drain pan (8-quart minimum)
• Funnel with long hose
• Trim clip removal tool
• Ratchet (3/8")
• Socket set: 10mm, 12mm, 14mm, 17mm, 24mm
• Hex bit socket set: 10mm
• Torque wrench (10–100 Nm range)
• Brake cleaner spray
• Shop rags
• Infrared thermometer
• Scan tool with live data for ATF temperature (specialty)
• Fluid transfer pump (specialty)

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Automatic transmission fluid (Kia/Hyundai SP-IV equivalent) - Qty: 6 quarts
• Transmission drain plug crush washer - Qty: 1
• Transmission fill/check plug crush washer - Qty: 1

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📋 Before You Begin

• 🅿️ Park on level ground, set the parking brake, and chock the rear wheels.
• 🚗 Warm the transmission with a 10–15 minute drive so the fluid drains more completely.
• 📏 Raise and support the Sportage so it sits level on four points (level is critical for correct fluid level).
• 🧰 If you have a scan tool, set it up to view Transmission Fluid Temperature (TFT) (this is the fluid temp inside the transmission).

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the lower splash shield (if equipped)

• Use a trim clip removal tool to pop out plastic clips.
• Use a 10mm socket to remove any bolts.
• Set the shield and hardware aside in order.

Step 2: Locate the drain and fill/check plugs

• Place a drain pan under the transmission pan area.
• Identify the drain plug at the lowest point and the fill/check plug on the side of the transmission case.
• Always loosen the fill/check plug first.

Step 3: Loosen the fill/check plug first

• Use a 17mm socket or 10mm hex bit socket (varies by plug style) to crack it loose.
• If it won’t loosen, stop here (you don’t want to drain it and then be unable to refill).

Step 4: Drain the old transmission fluid

• Use a 24mm socket (common size) to remove the drain plug.
• Let the fluid drain until it slows to an occasional drip (10–20 minutes).
• Clean the drain plug with shop rags and brake cleaner spray.
• Install a new crush washer on the drain plug.
• Reinstall the drain plug and Torque to 40 Nm (30 ft-lbs).

Step 5: Refill with new ATF (initial fill)

• Use a fluid transfer pump (specialty) to pump SP-IV equivalent ATF into the fill/check port.
• Add approximately what you drained (typical drain-and-fill is often 4–5 quarts).
• Reinstall the fill/check plug loosely by hand for now.

Step 6: Start, cycle gears, and warm to level-check temperature

• Start the engine and keep your foot on the brake.
• Slowly move the shifter through P-R-N-D and back to P, pausing 2–3 seconds in each position.
• Monitor TFT with a scan tool (specialty). If you don’t have one, use an infrared thermometer on the transmission pan as an estimate.
• Target fluid level check temperature: 50–60°C (122–140°F).

Step 7: Set the final fluid level (overflow method)

• With the engine idling, vehicle level, and TFT at 50–60°C (122–140°F), place the drain pan underneath again.
• Use a 17mm socket or 10mm hex bit socket to remove the fill/check plug.
• Correct level behavior: a thin stream that quickly becomes a steady drip.
• If no fluid comes out, pump in ATF with the fluid transfer pump (specialty) until it just begins to overflow.
• Install a new crush washer on the fill/check plug and reinstall it.
• Torque to 25 Nm (18 ft-lbs).

Step 8: Reinstall splash shield and clean up

• Reinstall the splash shield using the 10mm socket and trim clip removal tool.
• Spray any spilled fluid with brake cleaner spray and wipe with shop rags.
• Lower the Sportage safely using the floor jack.

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✅ After Repair

• 🧪 Test drive 10–15 minutes. Verify smooth shifts and no slipping.
• 🕵️ Recheck for leaks around the drain plug and fill/check plug.
• 🧾 Properly dispose of used ATF at a recycling center or parts store that accepts fluids.

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💰 DIY vs Shop Cost

Shop Cost: $220-$420 (parts + labor)

DIY Cost: $45-$95 (parts only)

You Save: $125-$325 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.

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🎯 Ready to get started?

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