A4 Quattro Wagon L4-1.8L Turbo (AWM) (2001)
Wheel Speed Sensor: Service and Repair
Rear
Removing
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Switch ignition off.
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Lift rear seat out of its brackets.
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Detach cable holder (right arrow), separate ABS wheel speed sensor harness connector and press out grommet (left arrow). Left and right sides are
mirror images.
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Loosen wheel bolts.
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Raise vehicle.
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Remove wheel.
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Remove nuts (arrows) securing ABS wheel speed sensor harness retaining plate.
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Release ABS wheel speed sensor harness from holder (arrow).
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Pull ABS wheel speed sensor out of wheel bearing housing.
Installing
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Replace clamping sleeve, item - 4 -.
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Before inserting wheel speed sensor, install boot seal and grease sensor all around with assembly paste. Then, press in wheel speed sensor by hand