🔧 ES350 - Rear Brake Pad Replacement

You’ll be removing the rear wheels, sliding the rear calipers off, swapping the pads, then reassembling and torquing everything correctly. The key is to keep the caliper supported (don’t let it hang by the hose) and to compress the caliper piston slowly so the new thicker pads fit.

Difficulty Level: Intermediate | Estimated Time: 1.5-3 hours

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⚠️ Safety & Precautions

• ⚠️ Work on level ground and support the car with jack stands before going underneath.
• ⚠️ Do not press the brake pedal with the caliper removed.
• ⚠️ Brake dust is harmful—use brake cleaner, not compressed air.
• ⚠️ Keep the brake hose unstressed; hang the caliper with a hook/strap.
• ⚠️ Parking brake must be released so the rear caliper can move freely.

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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
• Breaker bar (1/2")
• Torque wrench (20–150 ft-lbs range)
• 14mm socket
• 17mm socket
• Ratchet (3/8")
• Flathead screwdriver
• C-clamp (6")
• Brake caliper hanger hook
• Wire brush
• Brake parts cleaner spray
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear brake pad set - Qty: 1
• Rear brake pad hardware kit (clips/shims) - Qty: 1
• Brake caliper slide pin grease (high-temp silicone) - Qty: 1
• Brake cleaner - Qty: 1

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📋 Before You Begin

• Park on level ground, shift to Park, and release the parking brake.
• Place wheel chocks in front of both front wheels.
• Crack the rear lug nuts loose 1/2 turn using a 21mm socket and breaker bar.
• Open the hood and loosen the brake fluid reservoir cap slightly by hand (don’t remove it). This helps the piston compress; watch for overflow.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Lift and secure the rear of the car

• Lift the rear with a floor jack at the approved rear lift point.
• Set the car onto jack stands placed under safe rear support points.
• Give the car a gentle shake to confirm it’s stable.

Step 2: Remove the rear wheels

• Remove lug nuts using a 21mm socket and ratchet.
• Remove both rear wheels and set them aside.

Step 3: Remove the rear caliper (do not disconnect the hose)

• Locate the two caliper slide pin bolts on the back of the caliper.
• Remove the slide pin bolts using a 14mm socket and ratchet.
• Lift the caliper off the bracket and hang it using a brake caliper hanger hook.
• Never let the caliper hang by the hose.

Step 4: Remove old pads and hardware

• Slide the old inner and outer pads out by hand; use a flathead screwdriver gently if they’re stuck.
• Remove the pad hardware clips from the bracket (if your new pads include new clips, replace them).

Step 5: Compress the caliper piston

• Place one old pad flat against the piston face.
• Use a C-clamp (6") to slowly press the piston straight back into the caliper.
• Go slowly and keep it straight—if it tilts, back off and re-center.
• Check the brake fluid reservoir while compressing; if it rises near the top, stop and remove a little fluid (do not overfill).
• Slow compression helps protect seals.

Step 6: Clean and service the caliper bracket

• Spray the bracket contact areas with brake parts cleaner spray.
• Use a wire brush to clean pad “rails” where the pads slide.
• Pull the slide pins out one at a time (they slide out of the rubber boots by hand).
• Wipe them clean, apply a thin coat of brake caliper slide pin grease (high-temp silicone), and reinstall.
• Slide pins must move smoothly.

Step 7: Install new hardware and pads

• Install new hardware clips into the bracket (press in by hand).
• Install the new pads into the bracket. The pad with the wear indicator (if equipped) typically goes on the inner side.
• If your pads include shims, install them exactly as the pad kit shows.

Step 8: Reinstall the caliper and torque bolts

• Lower the caliper over the new pads by hand.
• Reinstall the caliper slide pin bolts using a 14mm socket and ratchet.
• Torque to 25 Nm (19 ft-lbs) using a torque wrench.
• If you removed the caliper bracket (only if necessary), reinstall bracket bolts using a 17mm socket and torque wrench: Torque to 79 Nm (58 ft-lbs).

Step 9: Reinstall wheels and torque lug nuts

• Install wheels and hand-thread lug nuts.
• Lower the car off the jack stands using the floor jack.
• Tighten lug nuts in a star pattern with a torque wrench: Torque to 103 Nm (76 ft-lbs).

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✅ After Repair

• Pump the brake pedal 10–15 times until it feels firm (this seats the pads against the rotors).
• Check brake fluid level and tighten the reservoir cap by hand.
• With the engine on, hold the brake and shift into Drive/Reverse briefly to confirm normal pedal feel.
• Do a cautious test drive and perform a gentle bed-in: 6–8 moderate stops from ~30–40 mph with cool-down time between stops.
• Listen for scraping or grinding; recheck wheel lug torque after a short drive.

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💰 DIY vs Shop Cost

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

DIY Cost: $60-$140 (parts only)

You Save: $190-$310 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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