🔧 Optima - Front Brake Pads & Rotor Replacement

On your Optima, the front pads clamp the front rotors to slow the car. Replacing pads and rotors is straightforward, but the exact rotor size (and some torque specs) can vary by front brake package, so I need one quick detail before I give you a fully exact, trim-correct parts list and torque numbers.

Difficulty Level: Intermediate | Estimated Time: 2.0-3.5 hours

---

⚠️ Safety & Precautions

• ⚠️ Make sure the hybrid system is OFF: vehicle not in READY, key fob away, and keep the car in P with the parking brake set.
• ⚠️ Support the car with jack stands—never rely on a jack alone.
• ⚠️ Do not press the brake pedal with a caliper removed (it can pop the piston out).
• ⚠️ Brake dust is unhealthy—avoid blowing it with compressed air; use brake cleaner.

---

🔧 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 wrench
• Socket set (metric)
• Ratchet (3/8")
• Breaker bar (1/2")
• Torque wrench (ft-lb range)
• Flat blade screwdriver
• C-clamp brake piston tool
• Bungee cord
• Wire brush
• Brake cleaner spray
• Shop rags
• Nitrile gloves
• Safety glasses

---

🔩 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 caliper hardware kit - Replace in pairs - Qty: 1
• Brake caliper grease (silicone) - Qty: 1
• Brake fluid (DOT 3 or DOT 4 as specified on reservoir cap) - Qty: 1

---

📋 Before You Begin

• Park on level ground, set the parking brake, and place wheel chocks behind the rear tires.
• Open the hood and locate the brake fluid reservoir; plan to watch the fluid level as you compress the caliper piston.
• Loosen the front lug nuts slightly while the car is still on the ground.
• Tip: Take a photo of each side before disassembly.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Confirm your front brake package (needed for exact parts + torque specs)

• Check your wheel size on the tire sidewall (example: 215/55R17 = 17" wheel) and tell me if you have 16" or 17" wheels.
• If you can, also tell me whether the current front rotors measure about 300 mm or 320 mm across (use a tape measure; measure straight across the rotor face).

Step 2: Lift and secure the front of the car

• Use a floor jack (rated 3-ton minimum) at the front jacking point, then place jack stands (rated 3-ton minimum) under proper support points.
• Remove the front wheels using a lug wrench.

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

• Turn the steering wheel to give yourself room to work.
• Remove the caliper slide bolts using a ratchet (3/8") and socket set (metric).
• Lift the caliper off the rotor, then support it with a bungee cord from the spring/strut.
• Tip: Never let the caliper dangle.

Step 4: Remove pads and hardware

• Pull the pads out of the bracket by hand.
• Remove the stainless pad clips (hardware) from the bracket.
• Clean the bracket pad lands with a wire brush and brake cleaner spray.

Step 5: Remove the caliper bracket

• Remove the caliper bracket bolts using a breaker bar (1/2") and socket set (metric).
• Set the bracket aside.

Step 6: Remove the rotor

• If your rotor is retained by a screw, remove it using a Phillips screwdriver (or use a flat blade screwdriver if that’s what fits).
• Remove the rotor from the hub. If it’s stuck, spray around the hub center with brake cleaner spray and tap the rotor hat firmly (use your existing tools carefully).
• Clean the hub face with a wire brush so the new rotor sits flat.

Step 7: Install the new rotor

• Clean both sides of the new rotor with brake cleaner spray and shop rags (removes shipping oil).
• Install the rotor onto the hub and reinstall the retaining screw (if equipped) using a Phillips screwdriver.

Step 8: Reinstall bracket and install new hardware/pads

• Reinstall the caliper bracket using a ratchet (3/8") and socket set (metric), then tighten with a torque wrench (ft-lb range) to the correct OEM spec (I’ll provide the exact number once you confirm 16" vs 17").
• Install the new pad clips from the hardware kit.
• Apply a thin layer of brake caliper grease (silicone) where pads slide on the clips (do not get grease on pad friction material).
• Install the new pads into the bracket.

Step 9: Compress the caliper piston and reinstall caliper

• Before compressing, check the brake fluid level at the reservoir (it may rise).
• Use a C-clamp brake piston tool to slowly push the piston back into the caliper. (A piston tool is a clamp that presses the piston in evenly.)
• Reinstall the caliper over the new pads and install the slide bolts using a ratchet (3/8") and socket set (metric), then finish with a torque wrench (ft-lb range) to OEM spec (I’ll provide exact torque after wheel-size confirmation).

Step 10: Reinstall wheels and torque lug nuts

• Reinstall wheels and hand-thread lug nuts.
• Lower the car and torque lug nuts in a star pattern using a torque wrench (ft-lb range) to the correct OEM spec (I’ll provide the exact value after wheel-size confirmation).

---

✅ After Repair

• With the car still OFF, pump the brake pedal slowly until it feels firm (this seats the pads).
• Check brake fluid level; top off only if needed using DOT 3 or DOT 4 as specified on reservoir cap.
• Start the car and confirm there are no warning lights. Do a slow test drive and verify smooth stopping.
• Bed-in (break-in) the pads: do several medium stops from city speed, allowing cool-down between stops.

---

💰 DIY vs Shop Cost

Shop Cost: $450-$850 (parts + labor)

DIY Cost: $180-$420 (parts only)

You Save: $270-$430 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 2-3 hours.

---

🎯 Ready to get started?

Quick question so I can give you the exact OEM torque specs and the correct rotor/pad set: do you have 16" wheels or 17" wheels (check the tire size on the sidewall)?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.