Abs Sensor Ring, Checking

Special tools and workshop equipment required 

• Gauge - Sender Wheel: T10473 
  Fig 1: Gauge - Sender Wheel T10473

  Courtesy of AUDI OF AMERICA, LLC

Procedure 

• Removing the wheel bearing unit. Refer to FRONT WHEEL BEARING UNIT, REMOVING AND INSTALLING or REAR WHEEL BEARING UNIT, REMOVING AND INSTALLING .

-- Check the sensor ring for the ABS speed sensor using the Gauge - Sender Wheel: T10473  as shown all around.

Courtesy of AUDI OF AMERICA, LLC

1. Wheel Bearing Unit
2. Seal with Integrated Sensor Ring for ABS Speed Sensor

Sensor ring for ABS speed sensor test diagram. 

Fig 2: Sensor Wheel Test Diagram

Courtesy of AUDI OF AMERICA, LLC

A -  Sensor Ring OK

B -  Sensor Ring Faulty