Changing Rear Brakes & Rotors

REMOVAL
Raise the rear of the vehicle and make sure it is securely supported. Remove the rear wheel.
Release the parking brake.
Remove the brake hose (A) from the suspension arm by removing the brake hose clip (B).
Thoroughly clean the outside of the caliper to prevent dust and dirt from entering inside.
Support the caliper with a piece of wire so that it does not hang from the brake hose.
Fig. 66: Removing Rear Caliper
Courtesy of KIA MOTORS AMERICA, INC.
Remove the two guide rods (C) and caliper (D) from the bracket.
Remove the pad shim (A) and brake pads (B).
Fig. 67: Removing Rear Pads & Shims
Courtesy of KIA MOTORS AMERICA, INC.
INSPECTION
REAR BRAKE DISC THICKNESS CHECK
Remove all rust and contamination from the disc surface, and then measure the disc thickness at 4 positions at least.
Rear brake disc thickness standard value : 10.0 mm (0.39 in.) Limit : 8.0 mm (0.315 in.)
Thickness variation should not exceed 0.005 mm (0.0002 in.) (Circumference) and 0.05 mm (0.0020 in.) (Radius) at any directions.
If wear exceeds the limit, replace the discs and pad assembly for left and right of the vehicle.
Fig. 68: Measuring Disc Thickness
Courtesy of KIA MOTORS AMERICA, INC.
REAR BRAKE PAD THICKNESS CHECK
Check the pad wear. Measure the pad thickness and replace it. If it is less than the specified value.
Pad thickness standard value : 9.0 mm (0.35 in.) Service limit : 2.0 mm (0.0787 in.)
Fig. 69: Measuring Brake Pad Thickness
Courtesy of KIA MOTORS AMERICA, INC.
Check that grease is applied to pad retainers, and the pad and backing metal are not damaged.
REAR BRAKE DISC RUNOUT CHECK
Place a dial gauge about 5 mm (0.2 in.) From the outer circumference of the brake disc, and measure the runout of the disc. Brake disc runout: Limit : 0.03 mm (0.0012 in.) Or less.
If the runout of the brake disc exceeds the limit specification, replace the disc, and then measure the runout again.
If the runout does not exceed the limit specification, install the brake disc after turning it 180 ° and then check the runout of the brake disc again.
If the runout cannot be corrected by changing the position of the brake disc, replace the brake disc.
Fig. 70: Measuring Disc Runout
Courtesy of KIA MOTORS AMERICA, INC.
INSTALLATION
Install the pad springs (A) to the carrier (B).
Fig. 71: Installing Pad Springs
Courtesy of KIA MOTORS AMERICA, INC.
Check for foreign material at the pad shim (A) and the back of the pads (B).
Fig. 72: Installing Pad Shims
Courtesy of KIA MOTORS AMERICA, INC.
Contaminated brake discs or pads reduce stopping ability. Keep grease off the discs and pads.
Install the brake pads (B) and pad shim (A) on the caliper bracket. Install the inner pad with its wear indicator (C) facing downward.
If you are reusing the pads, always reinstall the brake pads in their original positions to prevent a momentary loss of braking efficiency.
Rotate the caliper piston (A) clockwise into the cylinder and align the cutout (B) in the piston with the tab (C) on the inner pad by turning the piston back. Lubricate the boot with rubber grease to avoid twisting the piston boot. If the piston boot is twisted, back it out so it is positioned properly.
Fig. 73: Resetting Caliper Piston Position
Courtesy of KIA MOTORS AMERICA, INC.
Fig. 74: Installing Caliper
Courtesy of KIA MOTORS AMERICA, INC.
Install the brake caliper (D).
Install and torque the guide rods (E) to proper specification.
Install the brake hose (F) onto the suspension arm with the brake hose clip (G).
After installation, check for leaks at hose and line joints and connections, and retighten if necessary.
Depress the brake pedal several times to make sure the brakes work, then test-drive.
NOTE:Engagement of the brake may require a greater pedal stroke immediately after the brake pads have been replaced as a set. Several applications of the brake pedal will restore the normal pedal stroke.