BMW 840Ci Control Arm Assembly Replacement at your home or office.

How do mechanics replace a control arm?

• The vehicle is raised and supported on steel jack stands, and the wheel and tire assembly is removed.
• Stabilizer bar links are detached from the control arm, if applicable. ABS wiring to the wheel speed sensor, if routed along the arm, is disconnected.
• Control arm mounting bolts are detached from the frame and from the axle carrier if the control arm is in the rear.
• 对于通过球接头连接到转向指关节的前控制臂，将螺母从球形螺柱上取出，然后将螺栓推开，将螺栓推开，从转向指关节释放手臂。
• 手臂从车辆上降低，并由机械师检查，以确认噪声或其他问题实际上来自手臂中的缺陷。
• The new arm is installed using new mounting bolts if required by the service manual. In many cases, the fasteners must be tightened with the vehicle weight on the suspension in order to ensure the bushings are in a neutral, or resting, position.
• 降低车辆并进行了道路测试以确认问题已解决。更换控制臂将更改车辆对齐设置，机械师将您转介到专业的对准店，以将车辆对齐设置为工厂规格。