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Home >> Porsche >> 2019 >> Cayenne S >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> 46 Brakes - Brake Mechanism 2.9L -- 9YA - Cayenne (9YA) >> WM, 4600TW Grey Cast-Iron Brakes - Technical Values And Wear Limits >> Technical Values

Technical Values

Location Description Type Basic value Tolerance 1 Tolerance 2
Brake disc Ø, front     390 mm    
Brake disc Ø, rear     330 mm    
Brake disc thickness, front     38 mm    
Brake disc thickness, rear     28 mm    
Thickness tolerance of brake disc, max.     0.01 mm    
Effective brake disc Ø, front     323.4 mm    
Effective brake disc Ø, rear     274.6 mm    
Brake pad area per wheel, front (except for USA)     234 cm2    
Brake pad area per wheel, front (USA only)     216 cm2    
Brake pad area per wheel, rear     107 cm2    
Pad thickness, front Wear limit 2 mm   approx. 9.48 mm    
Pad thickness, rear Wear limit 2 mm   approx. 9.32 mm    
Brake disc wear dimension, front     36 mm    
Brake disc wear dimension, rear     26mm    
Lateral runout of brake disc, max.     0.03 mm    
Lateral runout of wheel hub, max.     0.02 mm    
Lateral runout of brake disc when installed, max.     0.06 mm