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-  7 and ball joint -item-  10.

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

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1. Lower Control Arm
   • 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
2. Front Bonded Rubber Bushing
   • Replacing. Refer to FRONT LOWER CONTROL ARM BONDED RUBBER BUSHING, REPLACING .
   • Note the installation position. Refer to Fig 1.
3. Bolt
   • 70 Nm + 180°
   • Replace after removing.
   • Tighten in the curb weight position. Refer to WHEEL BEARING IN CURB WEIGHT POSITION, LIFTING VEHICLES WITH COIL SPRING .
4. Subframe
5. Bolt
   • 70 Nm + 180°
   • Replace after removing.
6. Rear Bonded Rubber Bushing
   • There are different versions. Refer to the Parts Information for allocation.
   • Replacing. Refer to LOWER CONTROL ARM REAR BONDED RUBBER BUSHING, REPLACING .
   • Note the installation position for version 1. Refer to Fig 2
   • Grease version 1 after pressing in. Refer to LOWER CONTROL ARM REAR BONDED RUBBER BUSHING, REPLACING => Evenly grease the "kidneys" -arrows- of the bonded rubber bushing from above 0.1 g Grease:G 052 150 A2 using a paint brush. 
7. Nut
   • 60 Nm
   • Replace after removing.
8. Wheel Bearing Housing
   • Removing and Installing. Refer to WHEEL BEARING HOUSING, REMOVING AND INSTALLING .
9. Retaining Piece
   • Replace after removing.
10. Ball Joint
    • Checking. Refer to the appropriate service information
    • Removing and Installing. Refer to BALL JOINT, REMOVING AND INSTALLING .
11. Nuts
    • 40 Nm +45°
    • Replace after removing.

Installation Position for the Front Bonded Rubber Bushing 1

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

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

Installation Position - Rear Bonded Rubber Bushing Version 1

Fig 2: Installation Position - Rear Bonded Rubber Bushing Version 1

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• The arrow -1- on the bonded rubber bushing points to the arrow -2- on the control arm.
• The cam -3- must point to the center of the vehicle.