Measuring Rear Brake Disc - Lateral Runout

1. 1.1 Fit > 9510/1 - adapter plate-1-  on the hub of the brake disc -2-  .
2. 1.2 Screw in and tighten wheel bolts -3-  .

   > Tightening torque 160 Nm (118 ftlb.) 

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Adapter plate on rear wheel hub

Information 

The front face of the wheel hub must not be corroded.

The front face of the wheel hub must be cleaned using a fine emery cloth if necessary.

1. 2.1 Secure ball joint arm -1-  of the > VAS 6079/1 - dial gauge holder for brake discs  at a suitable position on the wheel suspension.
2. 2.2 Fit dial gauge -2-  from > VAS 6079/1 - dial gauge holder for brake discs  and adjust it so that the dial gauge -2-  is touching the outer edge of the brake disc -3-  with slight preload.
3. 2.3 Set dial gauge -2-  from > VAS 6079/1 - dial gauge holder for brake discs  to zero, turn the brake disc -3-  at the > 9510/1 - adapter plate-4-  slowly by one full turn and check the deflection of the dial gauge -2-  .

Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Dial gauge on rear brake disc

Measure lateral runout of the wheel hub.

Maximum lateral runout of brake disc:  > Measured value 0.06 mm