🔧 Camry - Transmission Fluid (eCVT) Drain & Refill

Your Camry Hybrid uses a sealed hybrid transaxle (eCVT). A fluid service is typically a simple drain-and-refill: remove the drain plug, reinstall with a new washer, then refill through the fill plug until fluid starts to spill out.

Assumption: Most Camry Hybrid eCVT units use 10mm hex (Allen) drain/fill plugs; verify plug head type before you begin.

Difficulty Level: Intermediate | Estimated Time: 1.0-2.0 hours

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⚠️ Safety & Precautions

• ⚠️ Support the car with jack stands on a level surface; never work under a car held only by a jack.
• ⚠️ Hybrid safety: the engine can start automatically if the car is in READY. Keep the car OFF during the service and keep the smart key away from the vehicle.
• ⚠️ Transmission fluid can be hot. Let the transaxle cool if you just drove.
• Use gloves and safety glasses; ATF is slippery and irritating to skin.
• Battery disconnect is not required for a basic drain-and-refill.

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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
• Trim clip removal tool
• 10mm socket
• 3/8" drive ratchet
• 3/8" drive torque wrench
• 10mm hex bit socket
• Fluid transfer pump (hand pump) (specialty)
• Drain pan (at least 10-quart)
• Funnel
• Shop rags
• Brake cleaner spray

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Toyota ATF WS automatic transmission fluid - Qty: 4 quarts
• Transmission drain plug crush washer - Qty: 1
• Transmission fill plug crush washer - Qty: 1

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📋 Before You Begin

• Park on a level surface. Set the parking brake. Place wheel chocks behind the rear tires.
• Warm the fluid slightly with a short 5–10 minute drive, then shut the car OFF and let things cool 10–15 minutes so fluid isn’t scalding.
• Lift the front with a floor jack and set it on jack stands. Keep the car level; fluid level accuracy depends on it.
• Tip: Always loosen the fill plug first. If you can’t open the fill plug, do not drain the fluid.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the lower splash shield (undercover)

• Use a 10mm socket to remove the bolts.
• Use a trim clip removal tool to pop out any plastic clips (a trim tool is a forked pry tool that removes clips without breaking them).
• Set the shield and hardware aside in order.

Step 2: Locate the transaxle fill and drain plugs

• Place a drain pan under the transaxle.
• The drain plug is on the bottom of the transaxle case.
• The fill plug is on the side of the transaxle case.
• Clean around both plugs using shop rags and brake cleaner spray so dirt doesn’t get inside.

Step 3: Loosen the fill plug first

• Use a 10mm hex bit socket with a 3/8" drive ratchet to break the fill plug loose.
• Once you know it will come out, snug it back in by hand (do not fully tighten yet).

Step 4: Drain the old transmission fluid

• Use a 10mm hex bit socket with a 3/8" drive ratchet to remove the drain plug.
• Let the fluid drain until it slows to an occasional drip.
• Inspect the drain plug for metal fuzz. A light paste is normal; chunks are not.

Step 5: Reinstall the drain plug with a new crush washer

• Install a new drain plug crush washer on the drain plug.
• Thread the drain plug in by hand to avoid cross-threading.
• Use a 3/8" drive torque wrench with a 10mm hex bit socket to tighten the drain plug: Torque to 39 Nm (29 ft-lbs).

Step 6: Fill the transaxle with Toyota ATF WS

• Remove the fill plug using a 10mm hex bit socket and 3/8" drive ratchet.
• Insert the hose from a fluid transfer pump (hand pump) (a hand pump pushes fluid uphill into a fill hole).
• Pump in Toyota ATF WS until fluid begins to spill back out of the fill hole in a steady drip.
• Wait 30–60 seconds, then pump a little more until it drips again.

Step 7: Reinstall the fill plug with a new crush washer

• Install a new fill plug crush washer on the fill plug.
• Thread the fill plug in by hand first.
• Use a 3/8" drive torque wrench with a 10mm hex bit socket to tighten the fill plug: Torque to 39 Nm (29 ft-lbs).

Step 8: Reinstall the splash shield

• Refit the undercover and start all bolts/clips by hand.
• Use a 10mm socket to tighten the bolts snugly (do not over-tighten plastic).

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✅ After Repair

• Start the car normally and let it idle for 1–2 minutes.
• With your foot on the brake, move the shifter slowly through P-R-N-D and back to P to circulate fluid.
• Check underneath for leaks around the drain and fill plugs.
• Take a short test drive. Recheck for leaks after the drive.
• Dispose of used ATF properly (most parts stores accept waste fluids).

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💰 DIY vs Shop Cost

Shop Cost: $200-$350 (parts + labor)

DIY Cost: $35-$80 (parts only)

You Save: $120-$300 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-1.5 hours.

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🎯 Ready to get started?

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