REAR SUSPENSION > Upper Arm
INSTALLATION
CAUTION:
• Use a new self-locking nut.
• Always tighten the bushing when the arm is positioned in the state where the vehicle is at curb weight and the wheels are in full contact with the ground.
1. Before installation, inspect the following items and replace any faulty part with a new one.
• Visually check the upper arm assembly for damage and deformation.
• Visually check the bushing for abnormal cracks, fatigue or damage.
• Visually check the dust cover on the ball joint for abnormal cracks, fatigue or damage.
2. Install the upper arm assembly to the rear sub frame assembly.
(1) Make the installation sections of the rear lateral link assembly (the bolt on the housing assembly - rear axle side and the bolt on the rear sub frame assembly side) horizontal.
(2) Install the upper arm assembly to the rear sub frame assembly.

Tightening torque:
Upper arm assembly — rear sub frame assembly: 90 N·m (9.18 kgf-m, 66.4 ft-lb)
3. Connect the upper arm assembly and the housing assembly - rear axle.
Tightening torque:
Upper arm assembly — housing assembly - rear axle: 80 N·m (8.16 kgf-m, 59.0 ft-lb)
4. Install the rear sub frame assembly in the reverse order of removal. Rear Sub Frame > INSTALLATION">
5. Route the rear ABS wheel speed sensor cable to the upper arm assembly.
6. Install the rear wheels.
Tightening torque:
Except for C4 model: 120 N·m (12.24 kgf-m, 88.5 ft-lb)
C4 model: 100 N·m (10.20 kgf-m, 73.8 ft-lb)
7. Inspect the wheel alignment and adjust if necessary.
• Inspection: Wheel Alignment > INSPECTION">
• Adjustment: Wheel Alignment > ADJUSTMENT">
CAUTION:
When the wheel alignment has been adjusted, perform the following VDC setting mode.
– Model without EyeSight: VDC sensor midpoint setting mode VDC Control Module and Hydraulic Control Unit (VDCCM&H/U) > ADJUSTMENT">
– Model with EyeSight: Neutral of Steering Angle Sensor & Lateral G Sensor 0 point setting VDC Control Module and Hydraulic Control Unit (VDCCM&H/U) > ADJUSTMENT">
– Model with EyeSight: Longitudinal G sensor & lateral G sensor 0 point setting VDC Control Module and Hydraulic Control Unit (VDCCM&H/U) > ADJUSTMENT">
8. Connect the battery ground terminal.
9. Perform reinitialization of the auto headlight beam leveler system. (Model with auto headlight beam leveler) Auto Headlight Beam Leveler System > PROCEDURE">
Upper arm
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