porsche Workshop Repair Guides

Porsche Workshop Service and Repair Manuals

Checking Front Brake Discs (Wear Assessment)|Page 5167 > < Checking Front Brake Discs (Wear Assessment)|Page 5165
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-A- Outer and inner wear areas.
-B- Central wear area.

The central wear area -B- is the area with the highest degree of wear.

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Measure the brake discs with a suitable micrometer at a minimum of three different places (-A, B, C-), offset by 120°.

Checking lateral runout (brake disc/wheel hub) and thickness tolerance

Note: Fasten dial gauge set with ball joint arm to wheel bearing housing.

For checking lateral runout two adapters are used. The brake disc and wheel hub can be measured with these.
Brake disc lateral runout

Checking Front Brake Discs (Wear Assessment)|Page 5167 > < Checking Front Brake Discs (Wear Assessment)|Page 5165