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Home >> Porsche >> 2021 >> 911 Targa 4 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 54 (46 Brakes - Brake Mechanism 3.0L (Eng Code MDK.KA) -- 992 - 911 CARRERA (992)) >> WM, 4600TW Grey Cast Iron Brakes - Technical Values And Wear Limits >> Technical Values

Technical Values

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Location Description Type Basic value Tolerance 1 Tolerance 2
Brake disc diameter, front   Diameter 350 mm    
Brake disc diameter, rear   Diameter 350 mm    
Brake disc thickness, front   Measured value 34 mm    
Brake disc thickness, rear   Measured value 28 mm    
Thickness tolerance of brake discs, maximum   Measured value 0.02 mm    
Effective brake disc diameter, front   Diameter 286.6 mm    
Effective brake disc diameter, rear   Diameter 294 mm    
Brake pad area per wheel, front   Area 200 cm2    
Brake pad area per wheel, rear   Area 100.4 cm2    
Pad thickness, front   Measured value 10.4 mm    
Pad thickness, rear   Measured value 9.5 mm    
Brake disc wear dimension, front   Measured value 32 mm    
Brake disc wear dimension, rear   Measured value 26 mm    
Lateral runout of brake disc, maximum   Measured value 0.03 mm    
Lateral runout of wheel hub, maximum   Measured value 0.03 mm    
Lateral runout of brake disc when installed, maximum   Measured value 0.06 mm