🔧 MDX - Front Brake Pads & Rotor Replacement

You’ll remove the front wheels, take off the brake calipers, replace the pads and rotors, then reassemble and torque everything correctly. This restores safe braking and prevents vibration/pulsation from worn or warped rotors.

Difficulty Level: Intermediate | Estimated Time: 2-4 hours

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⚠️ Safety & Precautions

• 🛑 Work on level ground and support your MDX with jack stands before going under or pulling wheels.
• 🧤 Brakes make dust—wear a dust mask and safety glasses; use brake cleaner, not compressed air.
• 🔥 Brakes can be hot—let the front brakes cool fully before starting.
• 🧷 Never let the caliper hang by the brake hose—support it with a hook/strap.
• 🔋 Battery disconnect is not required for front brakes on your MDX.

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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
• 19mm socket
• 1/2" drive breaker bar
• 1/2" drive torque wrench (20-200 ft-lbs range)
• Ratchet (3/8" drive)
• Socket set (10mm-19mm)
• Combination wrench set (10mm-19mm)
• Phillips #3 screwdriver
• Hand impact driver (specialty)
• C-clamp (6")
• Brake caliper hook
• Wire brush
• Rubber mallet
• Flat trim scraper
• Brake cleaner spray
• High-temp brake grease
• Anti-seize compound
• Shop towels
• Nitrile gloves
• Safety glasses
• Dust mask

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front brake pad set - Qty: 1
• Front brake rotors - Replace in pairs - Qty: 2
• Front brake hardware kit (pad clips/shims) - Qty: 1
• Brake fluid (DOT 3) - Qty: 1 bottle

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📋 Before You Begin

• Park on level ground, shift to Park, and set the parking brake.
• Place wheel chocks behind the rear wheels.
• Break the front lug nuts loose 1/4 turn using a 19mm socket and breaker bar before lifting.
• Lift the front using a floor jack and support with jack stands at proper lift points.
• Turn the steering wheel to give yourself more room (turn left to work on the right side, and vice-versa).

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the front wheels

• Finish removing the lug nuts using a 19mm socket and ratchet.
• Remove the wheels and set them aside.

Step 2: Locate the caliper, pads, and caliper bracket

• The caliper squeezes the pads; the caliper bracket is the larger mount holding the pads. (The bracket is the part you remove to get the rotor off.)
• Turn the steering for best access and place a towel under the work area.

Step 3: Remove the caliper (but don’t disconnect the hose)

• Remove the two caliper slide bolts using the correct-size socket and ratchet (commonly a 12mm/14mm head).
• Lift the caliper off the bracket.
• Hang the caliper with a brake caliper hook so the hose is not stretched.

Step 4: Remove the brake pads and hardware

• Slide the inner and outer pads out by hand (use a flat trim scraper gently if stuck).
• Remove the pad clips/hardware from the bracket.
• Clean the bracket pad “rails” with brake cleaner spray and a wire brush.

Step 5: Remove the caliper bracket

• Remove the two caliper bracket bolts using a breaker bar and the correct-size socket (commonly 17mm/19mm head).
• Set the bracket on a towel.
• On reassembly: Torque to 108 Nm (80 ft-lbs).

Step 6: Remove the old rotor

• If equipped with rotor retaining screws, remove them using a Phillips #3 screwdriver or a hand impact driver (specialty).
• Pull the rotor off. If it’s stuck, strike the rotor “hat” area with a rubber mallet (avoid hitting wheel studs).

Step 7: Clean the hub and install the new rotor

• Clean the hub face with a wire brush and wipe with brake cleaner spray.
• Apply a paper-thin film of anti-seize compound to the hub face (keep it off the rotor braking surfaces). Thin film only—don’t slather.
• Install the new rotor (clean both sides first with brake cleaner spray to remove packing oil).
• If you removed retaining screws, reinstall them using a Phillips #3 screwdriver (snug only).

Step 8: Reinstall the caliper bracket with new hardware

• Install the new pad clips/hardware onto the bracket.
• Reinstall the bracket bolts using the correct-size socket and a torque wrench.
• Torque to 108 Nm (80 ft-lbs).
• Apply a light coat of high-temp brake grease where the pad ears contact the clips (do not get grease on rotor/pad friction surfaces).

Step 9: Compress the caliper piston

• Remove the brake master reservoir cap under the hood to allow fluid to move (place a towel around it).
• Use a C-clamp (6") to slowly push the caliper piston back in. (A piston is the round part that pushes the pads.)
• Watch the reservoir fluid level—remove a little if it looks like it may overflow.

Step 10: Install the new pads and reinstall the caliper

• Install the inner and outer pads into the bracket by hand.
• Slide the caliper back over the new pads.
• Reinstall the caliper slide bolts using the correct-size socket and a torque wrench.
• Torque to 34 Nm (25 ft-lbs).

Step 11: Reinstall wheels and torque lug nuts

• Reinstall the wheels and hand-thread all lug nuts.
• Lower the MDX until the tires just touch the ground.
• Tighten lug nuts in a star pattern using a torque wrench.
• Torque to 127 Nm (94 ft-lbs).

Step 12: Repeat on the other front side

• Do the same procedure on the other front wheel.
• Front brakes should always be replaced in pairs.

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✅ After Repair

• 🧯 Pump the brake pedal 10-15 times before moving the MDX until the pedal feels firm (this seats the pistons against the new pads).
• Check brake fluid level and top off with DOT 3 if needed.
• Test at low speed first; confirm normal stopping and no pulling/noises.
• Bed-in the pads: make 8-10 smooth stops from ~40 mph to ~10 mph, with 30 seconds between stops (no hard panic stops unless needed for safety).
• Re-check lug nut torque after 25-50 miles using a torque wrench.

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💰 DIY vs Shop Cost

Shop Cost: $600-$1,100 (parts + labor)

DIY Cost: $250-$450 (parts only)

You Save: $350-$650 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-3 hours.

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🎯 Ready to get started?

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