🔧 Ioniq - Front Brake Pad Replacement

You’ll remove the front wheels, swing the front calipers out of the way, replace the old pads (and the small pad hardware clips), then reassemble and pump the brake pedal to restore a firm pedal. On your Ioniq, doing this correctly matters because the hybrid system can make the brakes feel “different” if the pedal isn’t pumped up before driving.

Difficulty Level: Intermediate | Estimated Time: 1.5-2.5 hours

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⚠️ Safety & Precautions

• 🛑 Keep the car OFF the entire time; do not press the brake pedal with a caliper removed.
• 🛑 Chock the rear wheels and support the car on jack stands; never rely only on a floor jack.
• 🛑 Brake dust is harmful—use brake cleaner, not compressed air.
• 🛑 Watch brake fluid level when compressing pistons; remove excess if it nears the MAX line.
• 🛑 If your Ioniq has an electronic parking brake switch, it only affects the rear brakes; no EPB “service mode” is required for front pads.

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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 (20-150 ft-lbs range)
• 14mm socket
• 17mm socket
• 3/8" drive ratchet
• 3/8" drive torque wrench (10-60 ft-lbs range)
• C-clamp (6" minimum)
• Flat-blade screwdriver
• Bungee cord
• Wire brush
• Brake cleaner spray
• 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 brake pad hardware kit (abutment clips) - Qty: 1
• Brake caliper grease (silicone brake grease) - Qty: 1
• Brake cleaner - Qty: 1

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📋 Before You Begin

• 🚗 Park on level ground and put the transmission in Park.
• 🧱 Chock both rear wheels.
• 🧯 Make sure the car is fully OFF (READY light off). Keep the key fob away from the car so it can’t wake up.
• 🛞 Slightly loosen the front wheel lug nuts before lifting the car (do not remove them yet).
• 🧴 Open the hood and locate the brake fluid reservoir. You’ll re-check the level after compressing the pistons.

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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 with a 1/2" drive breaker bar to loosen the front lug nuts about 1/2 turn.
• Lift the front using the floor jack at the proper front jack point, then support with jack stands.
• Remove the lug nuts with the 21mm socket and take both front wheels off.

Step 2: Locate the caliper and remove the slider bolts

• Turn the steering wheel to give yourself room (left for right side work, right for left side work).
• On the back of the caliper, remove the two caliper slide/guide pin bolts using a 14mm socket and 3/8" drive ratchet.
• If it fights you, push caliper inward first.

Step 3: Swing the caliper up and support it

• Use a flat-blade screwdriver to gently pry the caliper outward a little (this creates space).
• Swing the caliper up/off the bracket and hang it from the strut spring using a bungee cord.
• Do not let the caliper hang by the rubber brake hose.

Step 4: Remove old pads and hardware clips

• Pull the old inner and outer pads straight out by hand.
• Remove the stainless pad hardware/abutment clips from the caliper bracket (usually 4 total) by hand or with a flat-blade screwdriver.

Step 5: Clean the bracket pad lands

• Spray the bracket area with brake cleaner spray.
• Use a wire brush to clean the “pad lands” (the metal ledges where the clips sit) until smooth.
• Wipe clean and let it dry.

Step 6: Compress the caliper piston

• Place one old brake pad against the piston face.
• Use a C-clamp (6" minimum) to slowly press the piston straight back into the caliper.
• Go slowly and watch the brake fluid reservoir under the hood so it doesn’t overflow.
• Slow compression helps protect seals.

Step 7: Install new hardware clips and grease (lightly)

• Snap the new abutment clips into the bracket in the same positions as the originals.
• Apply a thin film of brake caliper grease (silicone brake grease) where the pad “ears” touch the clips.
• Do not get grease on the pad friction material or rotor.

Step 8: Install the new pads

• Install the new inner and outer pads into the bracket by hand.
• Make sure the pads slide freely in the clips (no sticking).

Step 9: Reinstall the caliper and torque bolts

• Swing the caliper back over the new pads.
• Reinstall the two caliper slide/guide pin bolts using a 14mm socket.
• Torque to 24.5-31.4 Nm (18-23 ft-lbs) using a 3/8" drive torque wrench.

Step 10: Reinstall wheels and torque lug nuts

• Reinstall both front wheels and hand-thread all lug nuts.
• Lower the car off the jack stands using the floor jack.
• Tighten lug nuts in a star pattern with a 21mm socket and 1/2" drive torque wrench.
• Torque to 88.3-107.9 Nm (65-80 ft-lbs).

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✅ After Repair

• 🦶 With the car still OFF, slowly pump the brake pedal 10-15 times until it feels firm.
• 🧴 Re-check brake fluid level at the reservoir and adjust to the MAX line (do not overfill).
• 👀 Look behind each front wheel for any brake fluid leaks and confirm the brake hose is not twisted.
• 🧪 Do a low-speed test in a safe area: gentle stops first, then normal stops.
• 🛑 Pad bedding: make 6-10 moderate stops from ~35 mph down to ~5 mph, letting brakes cool a bit between stops.

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💰 DIY vs Shop Cost

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

DIY Cost: $50-$140 (parts only)

You Save: $110-$400 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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