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Checking The Thickness Of The Disc Brake Pads

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NOTE:
  • The brake pads must be replaced (both sets of pads per axle) if the brake pad warning indicator lights up, but no later than when there is a residual pad thickness of 2 mm.

If brake pad wear is signalled by the warning light, the warning contact (sensor including line and plug connection) must be replaced. Replacing the warning contact can be avoided by replacing the brake pads no later than when the pad thickness is 2.5 mm. Warning contacts with a worn cable core must be replaced. However, if only the plastic part of the warning contact is worn, replacement is not necessary.

  1. To check the brake pads, remove the wheels.
  2. Check the brake pads for wear by means of a visual inspection.

The wear limit is reached when the pad has a residual thickness of 2 mm.

Fig 1: Identifying Brake Pad Thickness
G03103370Courtesy of PORSCHE OF NORTH AMERICA, INC.