🔧 Sentra - Front Brake Pads & Rotors Replacement

You’ll remove the front wheels, take off the brake calipers and caliper brackets, replace the rotors, then install new pads. This restores braking performance and fixes vibration/pulsation caused by worn or warped rotors.

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

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⚠️ Safety & Precautions

• Work on level ground and use jack stands; never rely on a jack alone.
• Brake dust is unhealthy—use brake cleaner and avoid blowing dust with compressed air.
• Do not let the caliper hang by the brake hose; support it with a hook/strap.
• Brake fluid can damage paint; keep rags handy and wipe spills immediately.
• Keep hands clear when compressing the caliper piston; move slowly and evenly.

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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
• Breaker bar (1/2")
• Torque wrench (1/2" drive, 20-150 ft-lbs range)
• Torque wrench (3/8" drive, 10-80 ft-lbs range)
• 21mm socket
• 14mm socket
• 19mm socket
• Ratchet (1/2" drive)
• Ratchet (3/8" drive)
• Flathead screwdriver (medium)
• C-clamp (6")
• Bungee cord
• Wire brush
• Brake parts cleaning brush
• M8 x 1.25 x 30mm bolts (for rotor removal)
• Rubber mallet
• Drain pan (small)
• 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 rotors - Replace in pairs - Qty: 2
• Front brake pad hardware kit (clips) - Qty: 1
• Brake caliper grease (silicone) - Qty: 1
• Brake cleaner - Qty: 2 cans
• DOT 3 brake fluid - Qty: 1 bottle

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📋 Before You Begin

• Park your Sentra on level ground, shift to P, and set the parking brake.
• Place wheel chocks behind the rear tires.
• Open the hood and locate the brake fluid reservoir. Make sure it’s not overfilled (fluid will rise when you compress the pistons).
• Loosen the front wheel lug nuts slightly before lifting the car (don’t remove them yet).

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift the front and remove the wheels

• Use a 21mm socket and breaker bar to loosen lug nuts 1/2 turn.
• Lift the front with a floor jack (rated 3-ton minimum) at the front center jacking point, then support with jack stands (rated 3-ton minimum).
• Remove lug nuts with a 21mm socket and take off both front wheels.

Step 2: Remove the brake caliper (do not stretch the hose)

• Turn the steering wheel to give yourself room (left for right side, right for left side).
• Remove the two caliper slide bolts using a 14mm socket and 3/8" ratchet.
• Lift the caliper off the bracket. Hang it from the strut spring using a bungee cord (so the brake hose isn’t supporting weight).
• Take a quick photo before disassembly.

Step 3: Remove old pads and caliper bracket

• Slide the old brake pads out by hand (use a flathead screwdriver (medium) gently if they’re stuck).
• Remove the caliper bracket bolts using a 19mm socket and breaker bar.
• Set the bracket aside on a clean surface.

Step 4: Remove the rotor

• If the rotor is stuck, thread two M8 x 1.25 x 30mm bolts into the rotor’s push-off holes and tighten evenly with a ratchet until the rotor pops loose.
• If needed, tap the rotor hat with a rubber mallet to break rust loose (avoid hitting wheel studs).
• Remove the rotor.

Step 5: Clean the hub and install the new rotor

• Clean rust off the hub face using a wire brush. Spray with brake cleaner and wipe clean.
• Clean the new rotor friction surfaces using brake cleaner (this removes protective shipping oil).
• Install the new rotor onto the hub. Use one lug nut hand-tight with a 21mm socket to hold the rotor flush while you work.

Step 6: Service the bracket and install new hardware clips

• Remove the old stainless pad clips from the bracket (use a flathead screwdriver (medium)).
• Clean the bracket “pad lands” (the shiny areas where clips sit) with a wire brush and brake parts cleaning brush.
• Install the new hardware clips from the kit.
• Apply a thin film of brake caliper grease (silicone) where the pad ears contact the clips (do not get grease on rotor/pad friction material).

Step 7: Reinstall the caliper bracket

• Position the bracket over the rotor and start bolts by hand.
• Tighten bracket bolts using a 19mm socket and torque wrench (1/2" drive, 20-150 ft-lbs range).
• Torque to 108 Nm (80 ft-lbs)

Step 8: Compress the caliper piston

• Before compressing, check the brake fluid reservoir level (under the hood). If it’s near MAX, remove a little fluid into a drain pan (small).
• Place one old brake pad against the piston face, then use a C-clamp (6") to slowly press the piston fully back into the caliper.
• A C-clamp is a screw clamp that presses the piston back in evenly.

Step 9: Install new pads and reinstall the caliper

• Install the new inner and outer pads into the bracket by hand (they should slide smoothly in the new clips).
• Apply a small amount of brake caliper grease (silicone) to the caliper slide pins if they are dry. Move the pins by hand to confirm they slide freely.
• Set the caliper over the new pads and align the slide bolt holes.
• Install and tighten caliper slide bolts using a 14mm socket and torque wrench (3/8" drive, 10-80 ft-lbs range).
• Torque to 26 Nm (19 ft-lbs)

Step 10: Reinstall wheels and torque lug nuts

• Reinstall the wheels and hand-start all lug nuts.
• Lower the car off the jack stands using the floor jack (rated 3-ton minimum).
• Tighten lug nuts in a star pattern with a torque wrench (1/2" drive, 20-150 ft-lbs range).
• Torque to 113 Nm (83 ft-lbs)

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✅ After Repair

• Before driving, 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 with DOT 3 brake fluid if needed.
• Start the engine and confirm the pedal stays firm.
• Test drive at low speed first. Listen for abnormal grinding or pulling.
• Pad bed-in (recommended): make 6-10 moderate stops from 30–40 mph with cool-down time between stops; avoid hard stops for the first 200 miles.
• Recheck lug nut torque after 25-50 miles using a torque wrench.

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💰 DIY vs Shop Cost

Shop Cost: $350-$650 (parts + labor)

DIY Cost: $120-$250 (parts only)

You Save: $230-$400 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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