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Home >> Porsche >> 2016 >> 911 Turbo, 2D Convertible >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> 46 Brakes - Brake Mechanism -- 911 CARRERA (991) >> WM 465102 Checking Front PCCB Brake Discs (Wear Assessment) (Except CARRERA "Edition", CARRERA Cabriolet "Edition", Turbo, Turbo S, CARRERA 4 "Edition", Turbo CABRIO, Turbo S CABRIO, CARRERA 4 Cabriolet "Edition", Gt3, Gt3 RS) >> Information Concerning Bores (perforations) In The Brake Disc Friction Surface >> Notes

Information Concerning Bores (perforations) In The Brake Disc Friction Surface: Notes

Observe the following warning when cleaning or exposing the bores in the brake disc friction surface!

Fig 1: Identifying Brake Disc Friction Surface Bores (Perforations)
G09991783Courtesy of PORSCHE CARS NORTH AMERICA, INC.
NOTE: Work cannot be carried out on the bores in the brake disc friction surface
  • Damage to brake discs

โ†’ Clean the bores on PCCB brake discs with high-pressure cleaning equipment if necessary. Observe the relevant environmental and safety regulations.

โ†’ Do not machine the bores. Drilling or counter-sinking is not permitted.