Overview - Lower Control Arm And Ball Joint

If the components of the front axle (axle components and/or wheel rim) are replaced if damaged, the tightening specifications on the following threaded connections must be checked, when these threaded connections are not replaced during the repair procedure.

• Testing torque 80 Nm for nut -item  ) OVERVIEW - LOWER CONTROL ARM AND BALL JOINT - List Item: Nut and ball joint -item  ) OVERVIEW - LOWER CONTROL ARM AND BALL JOINT - List Item: Ball Joint.

Until the testing torque is reached in the tightening direction turning of the connection is not permitted.

Fig 1: Exploded View Of Lower Control Arm & Ball Joint

Courtesy of AUDI OF AMERICA, LLC

1. Wheel Bearing Housing
   • Different versions. Refer to the Parts Information
   • Removing and installing. Refer to WHEEL BEARING HOUSING, REMOVING AND INSTALLING .
2. Nut
   • 60 Nm
   • Replace after removing.
3. Ball Joint
   • Checking. Refer to FRONT AND REAR AXLE COMPONENTS, CHECKING PLAY, ATTACHMENT AND BALL JOINT BOOTS FOR DAMAGE .
   • Removing and Installing. Refer to BALL JOINT, REMOVING AND INSTALLING .
4. Nut
   • 40 Nm + 45°
   • Always replace if removed
5. Lower Control Arm
   • Different versions with one point and 3 point retainer.
   • Removing and Installing. Refer to LOWER CONTROL ARM, REMOVING AND INSTALLING .
   • If the control arm is bent and must be replaced, then the ball joint on this side of the vehicle must also be replaced
   • Equipment versions with air duct. Refer to Fig 4.
6. Front Bonded Rubber Bushing
   • Replacing. Refer to FRONT LOWER CONTROL ARM BONDED RUBBER BUSHING .
7. Bolt
   • 70 Nm + 180°
   • Always replace if removed
   • Tighten in the curb weight position. Refer to WHEEL BEARING IN CURB WEIGHT, LIFTING VEHICLES WITH COIL SPRING .
8. Bolt
   • 70 Nm + 180°
   • Always replace if removed
9. Rear Bonded Rubber Bushing
   • Different versions. Refer to the Parts Information.
   • Replacing. Refer to REAR LOWER CONTROL ARM BONDED RUBBER BUSHING .
   • Version 1:
     • Note the installation position. Refer to Fig 3.
     • Grease after pressing in. Refer to REAR LOWER CONTROL ARM BONDED RUBBER BUSHING - Evenly grease the "kidneys" -arrows- of the bonded rubber bushing from above 0.1 g Grease: G 052 150 A2 using a paint brush. .
   • Version 2: no specified installation position
10. Nut
    • Always replace if removed
    • Only metal sheet subframe
11. Subframe

Installation Position for the Front Bonded Rubber Bushing 1 

Fig 2: Installation Position for the Front Bonded Rubber Bushing -1-

Courtesy of AUDI OF AMERICA, LLC

• The grooves -3- must point toward the control arm -2-.

Installation Position of the Rear Bonded Rubber Bushing Version 1 

Fig 3: Installation Position of the Rear Bonded Rubber Bushing Version 1

Courtesy of AUDI OF AMERICA, LLC

• The stamped arrow points between the markings -arrows A- in the control arm.
• The cam -arrow B- must point to the center of the vehicle.

Air Duct - Installation Position 

Fig 4: Air Duct - Installation Position

Courtesy of AUDI OF AMERICA, LLC

-- Secure the air duct -2- as shown on the control arm -1- in the installation position and secure with cable ties -arrows-.