Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSKIA2021FORTE GT, AUTOMATIC DCT TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)BRAKESMECHANICAL - HYDRAULICBRAKE SYSTEMREAR DISC BRAKEREPAIR PROCEDURESINSPECTIONREAR BRAKE DISC THICKNESS CHECK
2021 Kia Forte GT, Automatic DCT Trans
Rear Brake Disc Thickness Check
2021 Kia Forte GT, Automatic DCT TransSECTION Rear Brake Disc Thickness Check
- Check the brake pads for wear and fade.
- Check the brake disc for damage and cracks.
- Remove all rust and contamination from the surface, and measure the disc thickness at 8 points, at least, at the same distance apart (5 mm) from the brake disc outer circle.
Rear Brake disc thickness
Standard: 10 mm (0.3937 in)
Service limit: 8.4 mm (0.3307 in)
Deviation: less than 0.005 mm (0.0002 in)
- If wear exceeds the limit, swab left and right discs and pad assemblies of the vehicle.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.