Front Brake Disc Runout Check - With Wheel On XK-RS

WARNING: This page is about a different car, the 2011 Jaguar XKR, 2011 Jaguar XK, 2010 Jaguar XKR, and 2010 Jaguar XK. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Some variation in the illustrations may occur, but the essential information is always correct.

NOTE: RH illustration shown, LH similar

NOTE: All measurements must taken with the wheel installed.

WARNING: Make sure to support the vehicle with axle stands.

Raise the front of the vehicle.
Mount the DTI Dial Test Indicator (DTI) gauge to the bolt as shown with tool 100-053.
Make sure the DTI is securely mounted.
Position the DTI probe 5 mm from the outer edge of the disc.
- Zero DTI and rotate road wheel one complete revolution to measure disc runout.
Position the DTI probe in the centre of the disc.
- Zero DTI and rotate road wheel one complete revolution to measure disc runout.
Position the DTI probe 5 mm from the inner edge of the disc.
- Zero DTI and rotate road wheel one complete revolution to measure disc runout.

NOTE: The disc runout limit is 0.075 mm.

If the disc runout exceeds the limit check the hub drive flange and bearing runout. Refer to Front Wheel Bearing and Wheel Hub Runout Check - Vehicles With: Standard Brakes information.
If hub runout is within the limit replace the brake disc.
Install the wheel.
- Tighten the road wheel nuts in sequence as shown above to the following:
- Stage 1: 4 Nm.
- Stage 2: 60 Nm.
- Stage 3: 125 Nm.
Re-check the disc runout as detailed above.
Remove DTI and install the bolt. 90 Nm.