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Home >> Porsche >> 2011 >> Cayenne S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 49 (46 - Brakes - Brake Mechanism (4.8L Turbo) -- 92A - Cayenne (92A)) >> WM, 465102 Checking Front Brake Disc - PCCB (Wear Assessment) >> Checking Front Brake Disc - PCCB (Wear Assessment) >> General Information On Pccb Brake Discs

General Information On Pccb Brake Discs

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The brake discs have wear indicator plates in the friction surfaces. The wear indicator plates (six on each brake disc) are arranged close to the outer diameter, offset by 120° -arrows-  at three points. The three wear indicator plates on each friction surface (3 on the inside and 3 on the outside) are positioned directly opposite each other. Each wear indicator is approx. 2 cm 2 . The wear indicators are barely visible on new brake discs.

G16319112Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Wear indicators

The minimum brake disc thickness (wear dimension) is stamped on the brake-disc chamber (e.g. Min. Th. 37.7 mm).