Measuring Front Brake Disc - Lateral Runout (Wheel Hub)
WARNING: This page is about a different car, the 2024 Porsche Macan, 2023 Porsche Macan, 2022 Porsche Macan, 2021 Porsche Macan, and 2020 Porsche Macan. However, it is still accessible from the selected car via links, so may be relevant.
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.
- Measure lateral runout of the wheel hub.
Dial gauge on wheel hub
- 1.1 > 9510/1 - Adapter plate-2-
must be fitted on the wheel hub. Then, fit and tighten wheel bolts.
>
- 1.2 Secure > VAS 6079 - Dial gauge-1- at a suitable position on the wheel suspension using > VAS 6079/1 - dial gauge holder for brake discs.
- 1.3 Adjust > VAS 6079 - Dial gauge-1- so that the > VAS 6079 - Dial gauge-1- is touching the outer edge of the wheel hub and is slightly pre-tensioned.
- 1.4 Zero the > VAS 6079 - Dial gauge-1- , slowly turn the wheel hub with the > 9510/1 - Adapter plate-2- by one full turn and check the deflection of the > VAS 6079 - Dial gauge-1- .
- 1.1 > 9510/1 - Adapter plate-2-
must be fitted on the wheel hub. Then, fit and tighten wheel bolts.
- If the lateral runout of the wheel hub is outside of the tolerance range:
Replace wheel hub.
> 405755 - REPLACING FRONT WHEEL BEARING
Maximum lateral runout of the wheel hub: 0.02 mm - Only
if the lateral runout of the brake disc is outside of the tolerance range, but the lateral runout of the wheel hub is within the tolerance range:
Replace front brake disc.