A8L Quattro Sedan V8-4.2L (AKB) (2002)
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Check ABS wheel speed sensor rotor for dirt and damage through hole in swing arm.
Note:
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If the rotor is damaged, the outer CV joint that the rotor is on must be replaced.
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The outer CV joint is supplied with the rotor as a replacement part.
To clean ABS wheel speed sensor rotor:
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Loosen flanged bolt on drive axle.
WARNING: Loosen and tighten the flanged bolt only with the vehicle standing on its wheels. Otherwise, there is risk of accident
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Push drive axle inward; clean rotor as necessary.