🔧 RDX - Front Brake Pad Replacement

You’ll remove the front wheels, swing the brake caliper out of the way, swap the old pads for new ones, then reassemble and verify everything moves freely. New pads restore safe stopping power and prevent rotor damage when pads wear thin.

Difficulty Level: Intermediate | Estimated Time: 1.5-3.0 hours

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⚠️ Safety & Precautions

• 🛑 Work on level ground and use jack stands—never rely on a jack alone.
• 🧤 Wear safety glasses and gloves; brake dust and cleaner are irritating.
• 🔥 Brakes can be hot; let them cool before touching.
• 🧱 Chock the rear wheels before lifting the front.
• 🔩 Do not let the caliper hang by the brake hose; support it with a hook/strap.
• 🔋 Battery disconnect is not required for this front brake pad job.

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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
• 21mm socket
• 1/2" drive breaker bar
• 1/2" drive torque wrench (20-200 ft-lbs range)
• 3/8" drive ratchet
• 3/8" drive torque wrench (10-80 ft-lbs range)
• 14mm socket
• 17mm socket
• C-clamp (6")
• Brake caliper hanger hook
• Flat-blade screwdriver
• Wire brush
• Turkey baster
• Brake cleaner spray
• Shop towels
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Front brake pad set - Qty: 1
• Front pad hardware kit (clips/shims) - Qty: 1
• Brake lubricant (silicone or synthetic) - Qty: 1
• Brake cleaner - Qty: 1

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📋 Before You Begin

• 🅿️ Park on level ground, put the shifter in Park, and set the parking brake.
• 🧱 Place wheel chocks behind both rear tires.
• 🧴 Open the hood and locate the brake fluid reservoir. If it’s near “MAX,” use a turkey baster to remove a little fluid (this prevents overflow when you push the pistons back).
• 🧰 Set out new pads and hardware so you can match orientation left-to-right.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Loosen lug nuts and lift the front

• Use a 21mm socket and breaker bar to loosen the front lug nuts 1/2 turn (do not remove yet).
• Use a floor jack (rated 3-ton minimum) to lift the front at the proper jacking point.
• Set the vehicle down onto jack stands (rated 3-ton minimum).

Step 2: Remove the front wheels

• Remove lug nuts with the 21mm socket and 1/2" drive breaker bar or 3/8" drive ratchet.
• Remove both front wheels and place them flat under the vehicle as an extra safety backup.

Step 3: Access the caliper and remove the caliper bolts

• Turn the steering wheel to give yourself more room at the side you’re working on.
• Locate the brake caliper (the “clamp” that squeezes the rotor) and the two rear caliper slide bolts.
• Use a 14mm socket and 3/8" drive ratchet to remove the two caliper slide bolts.

Step 4: Support the caliper (do not stretch the hose)

• Carefully lift the caliper off the bracket.
• Hang the caliper using a brake caliper hanger hook.
• Never let the caliper dangle by the hose.

Step 5: Remove old pads and hardware

• Pull the old pads out of the caliper bracket (the metal frame the pads slide in).
• Remove the stainless pad clips/hardware from the bracket.
• Use a flat-blade screwdriver gently if anything is stuck.

Step 6: Clean and prep the bracket and slide pins

• Spray the bracket area with brake cleaner spray and wipe with shop towels.
• Use a wire brush to clean rust from the pad “lands” where the clips sit.
• Check slide pins for smooth movement (they should glide in/out by hand). If sticky, clean and re-lube with brake lubricant.

Step 7: Install new hardware clips

• Snap the new clips from the front pad hardware kit (clips/shims) into the bracket.
• Make sure each clip sits fully flat; crooked clips cause uneven pad wear.

Step 8: Compress the caliper piston

• Place an old pad against the piston face (to spread force evenly).
• Use a C-clamp (6") to slowly press the piston back into the caliper.
• Watch the reservoir level while compressing; remove fluid with the turkey baster if it rises too high.
• Go slow to avoid damaging the seal.

Step 9: Install the new pads

• Apply a thin layer of brake lubricant to pad ears where they contact the clips (do not get any on pad friction material).
• Install the new pads into the bracket in the same positions as the originals.

Step 10: Reinstall the caliper and torque bolts

• Lower the caliper over the new pads.
• Install caliper slide bolts by hand first to avoid cross-threading, then tighten with a 14mm socket.
• Torque to 34 Nm (25 ft-lbs) using a 3/8" drive torque wrench (10-80 ft-lbs range).

• Assumption: Torque spec listed is typical for this RDX caliper slide bolts; use OEM spec if you have it.

Step 11: Reinstall wheels and torque lug nuts

• Put the wheels back on and hand-thread lug nuts.
• Snug lug nuts in a star pattern using a 21mm socket and 1/2" drive breaker bar.
• Lower the vehicle off the jack stands using the floor jack.
• Torque to 127 Nm (94 ft-lbs) in a star pattern using a 1/2" drive torque wrench (20-200 ft-lbs range).

Step 12: Pump the brake pedal before driving

• With the engine off, press the brake pedal slowly 10-15 times until it feels firm (this seats the pistons against the new pads).
• Check brake fluid level and top off if needed (use the correct DOT brake fluid listed on the reservoir cap).

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✅ After Repair

• 🧪 Start the engine and confirm the brake pedal stays firm.
• 👀 Check for leaks around each caliper and confirm no tools are left in the engine bay.
• 🚗 Do a cautious test drive: 5-10 gentle stops to verify normal braking.
• 🛑 Pad break-in: make 8-10 moderate stops from ~40 to ~10 mph, with cool-down time between stops. Avoid hard stops for the first 200 miles if possible.

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💰 DIY vs Shop Cost

Shop Cost: $250-$450 (parts + labor)

DIY Cost: $60-$160 (parts only)

You Save: $190-$290 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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