🔧 Sentra - Front Brake Pads & Rotor Replacement

You’ll remove the front wheels, swap the brake pads and rotors, then reassemble everything with the correct torque. This restores stopping power and prevents vibration/pulsation caused by worn pads or warped rotors.

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

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⚠️ Safety & Precautions

• 🛑 Support the car on jack stands; never rely on a floor jack alone.
• 🧤 Brake dust is harmful; wear gloves and a dust mask, and use brake cleaner (don’t blow dust with compressed air).
• 🔥 Brakes can be hot; let them cool before starting.
• 🧴 Watch the brake fluid level when compressing the caliper piston; it can overflow the reservoir.
• 🪝 Do not let the caliper hang by the brake hose; support it with a hanger/strap.

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🔧 Required Tools

You'll need the following tools for this repair:

• Floor jack (rated 2-ton minimum)
• Jack stands (pair, rated 2-ton minimum)
• Wheel chocks (pair)
• 21mm socket
• 19mm socket
• 14mm socket
• 3/8" ratchet
• 1/2" breaker bar
• Torque wrench (20-150 ft-lbs range)
• Large C-clamp
• Bungee cord
• Wire brush
• Rubber mallet
• M8 x 1.25 bolts (pair, 25-35mm long)
• Flathead screwdriver
• Brake cleaner spray
• 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 - Qty: 2
• Front brake hardware kit (clips/shims) - Qty: 1
• Brake caliper grease (silicone) - Qty: 1
• Brake fluid (DOT 3) - Qty: 1 bottle

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📋 Before You Begin

• Park on level ground, put the transmission in 1st gear, and set the parking brake.
• Place wheel chocks behind the rear tires.
• Crack the front lug nuts loose 1/2 turn using a 21mm socket and breaker bar before lifting.
• Open the hood and loosen the brake fluid reservoir cap (leave it sitting on top). This helps when you push the piston back.
• Do one side at a time as a reference.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift the front and remove the wheel

• Lift the front using a floor jack (rated 2-ton minimum) at the front center jack point, then set the car onto jack stands (pair, rated 2-ton minimum).
• Remove the lug nuts with a 21mm socket and 3/8" ratchet, then remove the wheel.

Step 2: Remove the brake caliper (leave the hose attached)

• Turn the steering so you can access the caliper bolts easier.
• Remove the two caliper slide-pin bolts using a 14mm socket and 3/8" ratchet.
• Lift the caliper off the pads and support it with a bungee cord so the brake hose is not stretched.
• Slide pins are the small bolts the caliper “floats” on.

Step 3: Remove the old pads and hardware

• Pull the pads out of the bracket by hand (use a flathead screwdriver gently if they’re stuck).
• Remove the stainless pad clips/hardware from the bracket.
• Spray and wipe the area using brake cleaner spray and shop towels.

Step 4: Remove the caliper bracket

• Remove the two bracket bolts using a 19mm socket and 1/2" breaker bar.
• Set the bracket aside.
• During reassembly: Torque to 98 Nm (72 ft-lbs).

Step 5: Remove the rotor

• If the rotor is stuck, spray the hub area with brake cleaner spray and tap the rotor hat using a rubber mallet.
• If it still won’t come off, thread two M8 x 1.25 bolts (pair, 25-35mm long) into the rotor’s push-off holes and tighten evenly to “press” the rotor off the hub.
• Clean rust from the hub face using a wire brush so the new rotor sits flat.

Step 6: Install the new rotor

• Spray the new rotor with brake cleaner spray and wipe with shop towels to remove shipping oil.
• Place the rotor onto the hub.
• Hold it in place by hand (or reinstall one lug nut finger-tight to keep it from wobbling while you work).

Step 7: Reinstall the caliper bracket

• Position the bracket over the new rotor.
• Install and tighten the bracket bolts using a 19mm socket and 3/8" ratchet, then final-tighten with a torque wrench (20-150 ft-lbs range).
• Torque to 98 Nm (72 ft-lbs).

Step 8: Install new pad hardware and pads

• Snap the new clips from the front brake hardware kit (clips/shims) into the bracket.
• Apply a thin layer of brake caliper grease (silicone) where the pad “ears” slide on the clips (keep grease off pad/rotor friction surfaces).
• Install the new pads into the bracket.

Step 9: Compress the caliper piston

• Place one old brake pad against the piston face.
• Use a large C-clamp to slowly press the piston back into the caliper until it bottoms out.
• Check the brake fluid reservoir so it doesn’t overflow; remove excess with towels if needed.
• The piston is the round part that pushes the pads.

Step 10: Reinstall the caliper

• Slide the caliper over the new pads and rotor.
• Install the slide-pin bolts using a 14mm socket and 3/8" ratchet, then final-tighten with a torque wrench (20-150 ft-lbs range).
• Torque to 26 Nm (19 ft-lbs).
• If the slide pins feel dry or sticky, pull them out, wipe clean, and apply brake caliper grease (silicone), then reinstall.

Step 11: Reinstall the wheel

• Reinstall the wheel and hand-thread the lug nuts.
• Lower the car off the jack stands using the floor jack (rated 2-ton minimum).
• Tighten lug nuts in a star pattern using a torque wrench (20-150 ft-lbs range).
• Torque to 113 Nm (83 ft-lbs).

Step 12: Repeat on the other front wheel

• Repeat Steps 1 through 11 on the other side.
• Replace pads and rotors in pairs.

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✅ After Repair

• With the engine OFF, pump the brake pedal 10-15 times until it feels firm. This seats the pads against the rotors.
• Check brake fluid level and top off with brake fluid (DOT 3) if needed.
• Start the car and hold the brake pedal; it should feel solid and not sink.
• Test-drive at low speed first, and confirm no pulling, grinding, or warning lights.
• Pad bed-in (recommended): make 8-10 smooth stops from ~35 mph down to ~5 mph, with light cooling time between stops. Avoid hard stops for the first 200 miles.

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💰 DIY vs Shop Cost

Shop Cost: $450-$750 (parts + labor)

DIY Cost: $140-$320 (parts only)

You Save: $310-$430 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.5-2.5 hours.

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🎯 Ready to get started?

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