Wheel Bearing: Description and Operation
4057 - Wheel Bearings
Reinforced wheel bearings with a larger diameter are used in order to reliably transmit the increased transfer forces generated by the higher performance. They offer the major advantage of firmer wheel guidance in the transverse direction and therefore contribute to the extremely precise driving behavior.
ADJUSTMENT:
Repairs: The multipole seal must not come into contact with highly magnetic parts. On installing, it must be ensured that the magnetic side is facing the ABS sensor.
In addition, the wheel bearings now adopt the function of the former ABS pulse rings as in the Cayenne and 911 Carrera (997). They are fitted with a multipole seal. This is a seal with a magnetized layer, which generates the torque impulses for the ABS rpm sensors.