Checking Rear Disks For Runout and Thickness Variation

Checking both rear brake disks for runout and differences in thickness

(rear wheels removed)

Special Tools Required:
- 00 2 470
- 00 2 480
- 00 2 510





Remove bolts (2).

Release caliper and position aside.

Caution: Do not allow caliper to hand on brake hose.





Secure brake disk with 2 wheel studs (1) through maximum of 5 turns, if necessary use washers to prevent wheel studs from touching trailing arm.

Fit special tool 00 2 510 with special tool 00 2 470/ 00 2 480

Apply dial-gauge tip on outer edge of brake disk with light preload.

Turn brake disk slowly and read off lateral runout.
Refer to Technical data. [1][2]Specifications





Measure thickness differences within brake surface at approximately 8 points with micrometer.
Refer to Technical data. [1][2]Specifications

Install Hint:
Refit caliper.