why does my Volvo XC60 First Generation (2008-2017) have a pulsating brake pedal

Solution

1. Preparation

• Tools Required: Jack, jack stands, lug wrench, OBD-II scanner, torque wrench, brake cleaner, safety goggles, gloves.
• Ensure the vehicle is parked on a flat surface and the engine is off.
• Disconnect the battery for safety.

2. Inspect and Replace Brake Rotors

• Sub-steps:
  1. Loosen the lug nuts and lift the vehicle using the jack.
  2. Secure the vehicle on jack stands and remove the wheel.
  3. Inspect the rotors for signs of warping or scoring.
  4. If warped, remove the brake caliper by unbolting it and support it with a bungee cord (do not let it dangle).
  5. Remove the brake rotor by unscrewing the retaining screws if present and pull it off.
  6. Install new rotors, ensuring they are properly aligned and secured.
  7. Reinstall the brake caliper and torque to manufacturer's specifications (usually around 79 ft-lbs for Volvo).

3. Inspect and Replace Brake Pads

• Sub-steps:
  1. Remove the old brake pads from the caliper bracket.
  2. Clean the caliper bracket and inspect for damage.
  3. Apply brake grease to the backing of new brake pads.
  4. Install new brake pads into the caliper bracket.
  5. Ensure the pads are properly seated and aligned.

4. Bleed the Brake System

• Sub-steps:
  1. Reconnect the battery.
  2. Using a brake bleeder kit, have an assistant pump the brake pedal while you open the bleeder valve on the caliper.
  3. Close the valve before the assistant releases the pedal.
  4. Repeat until clear fluid without bubbles is expelled.
  5. Ensure all brakes are bled, starting from the furthest wheel from the master cylinder.