Audi Workshop Service and Repair Manuals

• Speed sensor
• ◆ Identical part on left and right
• ◆ Removing and installing
  .
• ◆ Connector for speed sensor
• Drive shaft with rotor
• ◆ Inspect rotor for signs of dirt and damage
• ◆ If the rotor is damaged, replace the outer CV joint together with the rotor => Repair group 40
• ◆ Outer CV joint is supplied as a replacement part with the rotor.

• Collar bolt
• ◆ Always replace
• ◆ Different versions => Parts List
• Vehicle must be standing on the ground when tightening this bolt.
• Tightening torque:

=> Running Gear, FWD and 4WD; Repair group 40

• Clamping sleeve
• ◆ Always replace
• ◆ Identical part on left and right
• ◆ Grease all around with lubricating paste G 000 650 before inserting in wheel bearing housing
• ◆ Press home in wheel bearing housing
• Sealing collar

Removing and installing speed sensor on front axle

Removing

• ‒ Loosen wheel bolts.
• ‒ Raise vehicle.
• ‒ Remove wheel.
• ‒ → Detach grommet -1- from the wheel housing.
• ‒ Disconnect connector of speed sensor wiring -2-.
• ‒ Unclip speed sensor wiring from retainers (arrows).
• ‒ Pull ABS speed sensor from wheel bearing housing.

Installing

• ‒ Before inserting the speed sensor, fit the sealing collar and coat the speed sensor all around with lubricating paste G 000 650.
• ‒ Install ABS speed sensor.

• ‒ Clip speed sensor wiring into retainers and fit grommet in wheel housing.
• ‒ Fit wheels and tighten to 120 Nm.
• ‒ Turn steering to full left lock and full right lock and check clearance of speed sensor wiring.

Checking rotor on front axle, removing and installing if necessary

• ‒ Raise vehicle.
• ‒ Remove wheel.
• ‒ Pull speed sensor out of wheel bearing housing.
• ‒ Inspect rotor for signs of damage or dirt.

Note:

• ◆ If the rotor is damaged or dirty remove the drive shaft. In the event of damage, replace outer CV joint together with rotor =>Repair group 40
• ◆ The outer CV joint is supplied as a replacement part with the rotor.