A4 Quattro Wagon L4-1.8L Turbo (ATW) (2000)
Wheel Speed Sensor: Service and Repair
Front
Removing
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Loosen wheel bolts.
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Raise vehicle.
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Remove wheel.
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Detach boot -1- from wheel housing.
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Separate harness connector -2- from ABS wheel speed sensor harness.
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Pull harness out of brackets (arrows).
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Remove ABS wheel speed sensor from wheel bearing housing.
Installing
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Before inserting ABS wheel speed sensor, install boot seal and grease sensor all around with assembly paste.
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Press speed sensor in by hand until fully seated.
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Connect ABS wheel speed sensor cable harness connector and press boot into wheel housing.
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After routing ABS wheel speed sensor cable (arrows), install wheel and tighten wheel bolts to 120 Nm (89 ft. lbs.).
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Turn steering to full left and full right lock and check clearance of ABS wheel speed sensor cable.