🔧 MDX - Transmission Fluid Change

On your MDX, “changing” the transmission fluid is usually done as a controlled drain-and-refill using the correct Acura/Honda-spec fluid and a level-setting procedure. The exact steps (and the correct fluid) depend on which transmission your MDX has.

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

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⚠️ Safety & Precautions

• 🛑 Work on a level surface and support the MDX with jack stands—never rely on a jack alone.
• 🛑 Transmission fluid can be hot; let the drivetrain cool before opening any plugs.
• 🛑 Keep the fill plug removable before you drain anything (so you don’t get stuck unable to 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
• Metric socket set (8mm-19mm)
• 3/8" drive ratchet
• 1/2" drive breaker bar
• Torque wrench (10-100 ft-lbs)
• Trim clip removal tool
• Drain pan (at least 10-quart)
• Fluid transfer pump (hand pump) (specialty)
• Long funnel with hose
• Shop rags

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Automatic transmission fluid (correct spec for your transmission) - Qty: 4-10 quarts
• Transmission drain plug crush washer - Qty: 1
• Transmission fill plug crush washer (if equipped) - Qty: 1
• Brake cleaner - Qty: 1

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📋 Before You Begin

• 🧭 Park on level ground, set the parking brake, and chock the rear wheels.
• Confirm which transmission you have (this changes the fluid type and level-setting procedure).
• Please answer these 2 quick questions so I can give you the exact, spec-correct steps and torque values:
• 1) Do you have the push-button shifter (P/R/N/D buttons) or a traditional shift lever?
• 2) Do you want a single drain-and-fill or the more complete 3x drain-and-fill (drive between each) service?

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🔨 Step-by-Step Instructions

Follow these steps in order:

I can’t give the correct fluid spec, fill/level procedure, or torque specs until I know which transmission you have (push-button 9-speed vs shift-lever 6-speed) and which service type you want.

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✅ After Repair

• 🔍 Verify there are no leaks at the drain/fill plugs after a short test drive.
• 🔁 Recheck the fluid level using the correct factory procedure for your transmission.

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💰 DIY vs Shop Cost

Shop Cost: $250-$600 (parts + labor)

DIY Cost: $60-$220 (parts only)

You Save: $190-$380 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.0-2.0 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.