🔧 XT4 - Front Brake Pads & Rotor Replacement

You’ll remove the front wheels, take off the front brake calipers, replace the pads and rotors, then reassemble everything with the correct torque. Worn pads/rotors can cause noise, vibration, longer stopping distances, and uneven braking.

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

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⚠️ Safety & Precautions

• 🛑 Support your XT4 with jack stands before working under/around the wheels.
• 🛑 Do not press the brake pedal while the caliper is off the rotor.
• 🛑 Brakes may contain dust—avoid blowing it with air; use brake cleaner.
• 🛑 Brake fluid can damage paint; wipe spills immediately.
• 🛑 Work on one side at a time so you can reference the other side if needed.

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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
• Lug nut socket (22mm)
• Breaker bar (1/2")
• Torque wrench (20–200 ft-lbs range)
• Ratchet (3/8")
• Ratchet (1/2")
• Socket set metric (10mm–24mm)
• Hex bit socket set (metric)
• Flathead screwdriver (medium)
• Brake caliper hanger hook (specialty)
• C-clamp (6")
• Wire brush
• Bungee cord
• Drip pan
• 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
• Brake pad hardware kit (anti-rattle clips) - Qty: 1
• Brake caliper grease (silicone) - Qty: 1
• Brake cleaner spray - Qty: 1
• DOT 3 brake fluid - Qty: 1 quart
• Caliper bracket bolts (recommended) - Qty: 4

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📋 Before You Begin

• Park on level ground, shift to P, and apply the parking brake.
• Chock the rear wheels using wheel chocks.
• Crack the front lug nuts loose using a 22mm socket and breaker bar before lifting.
• Open the hood and loosen the brake fluid reservoir cap (do not remove it fully). This helps the piston retract easier.
• Set up a drip pan under the brake area to catch cleaner runoff.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift and secure the front end

• Lift the front at the proper jacking point using a floor jack.
• Place jack stands under the approved support points and lower onto them.
• Remove the front wheels using a 22mm socket and ratchet.

Step 2: Inspect and prep the caliper

• Turn the steering wheel to give yourself more space (turn left to work on the right side, and vice versa).
• Locate the brake caliper (the clamp over the rotor) and the caliper bracket (the larger mount behind it).
• Remove any outer anti-rattle spring/clip (if equipped) using a flathead screwdriver.

Step 3: Remove the caliper (do not let it hang)

• Remove the caliper guide pin bolts using a ratchet and hex bit socket.
• Lift the caliper off the rotor.
• Hang the caliper from the suspension using a brake caliper hanger hook (specialty) or bungee cord.
• Never let the caliper hang by the brake hose.
• Torque spec (install): Torque to 35 Nm (26 ft-lbs)

Step 4: Remove the old pads and bracket

• Slide the old pads out of the bracket by hand.
• Remove the caliper bracket bolts using a 1/2" ratchet and appropriate metric socket.
• Remove the bracket and set it aside.
• Torque spec (install): Torque to 170 Nm (125 ft-lbs)

Step 5: Remove the rotor

• If there is a rotor retaining screw, remove it using the correct socket/bit from your set.
• Pull the rotor straight off the hub.
• If the rotor is stuck, tap the rotor “hat” area with the side of a breaker bar (controlled hits) while pulling outward.

Step 6: Clean the hub and install the new rotor

• Clean rust from the hub face using a wire brush. A clean hub helps prevent brake vibration.
• Spray the new rotor with brake cleaner spray and wipe it (removes shipping oil).
• Install the new rotor onto the hub.
• If equipped, reinstall the rotor retaining screw using a ratchet and correct bit/socket.
• Torque spec (install): Torque to 9 Nm (80 in-lbs)

Step 7: Reinstall bracket and hardware

• Reinstall the caliper bracket over the new rotor using a 1/2" ratchet and metric socket.
• Torque to 170 Nm (125 ft-lbs)
• Remove and replace the pad clips/hardware on the bracket (from your hardware kit).

Step 8: Compress the caliper piston

• Before compressing, check the brake fluid level at the reservoir (it may rise).
• Use a C-clamp (6") to slowly press the caliper piston back into the caliper.
• Go slowly to avoid pushing fluid too fast.
• Tool definition: A C-clamp is a screw clamp used to push the piston back in.

Step 9: Install the new pads

• Apply a thin film of brake caliper grease (silicone) to pad “ears” where they slide in the clips.
• Do not get grease on the pad friction material or rotor face.
• Install the inner and outer pads into the bracket by hand.

Step 10: Reinstall the caliper

• Place the caliper over the new pads/rotor.
• Install the guide pin bolts using a ratchet and hex bit socket.
• Torque to 35 Nm (26 ft-lbs)
• Reinstall the anti-rattle spring/clip (if equipped) using a flathead screwdriver.

Step 11: Reinstall the wheel

• Install the wheel and hand-thread the lug nuts.
• Snug the lug nuts in a star pattern using a 22mm socket and ratchet.
• Lower the vehicle off the jack stands using the floor jack.
• Final-torque the lug nuts in a star pattern using a torque wrench.
• Torque to 140 Nm (103 ft-lbs)

Step 12: Repeat on the other front side

• Repeat Steps 1–11 for the other front wheel.

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✅ After Repair

• With the engine OFF, pump the brake pedal 10–15 times until it feels firm. This seats the pistons to the new pads.
• Check brake fluid level and top off with DOT 3 brake fluid if needed.
• Start the engine and verify the pedal feels normal (not sinking).
• Test brakes at low speed first, then gradually increase speed.
• Pad/rotor break-in: make 8–10 smooth stops from 40 mph to 10 mph with light-to-medium pressure, then drive 5–10 minutes to cool.
• Listen for abnormal grinding, and re-check lug nut torque after 25–50 miles.

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💰 DIY vs Shop Cost

Shop Cost: $450-$900 (parts + labor)

DIY Cost: $180-$450 (parts only)

You Save: $270-$450 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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