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1.Move the lower arm ball joint stud back and forth for several times, and then use the preload socket (special tool: MB991006) to measure the lower arm ball joint breakaway torque.
Standard value: 2.2 to 4.1 Nm
2.If the measured value exceeds the standard range, replace the lower arm assembly. (Refer to  .)
3.Even if the measured value is within the standard range, check the lower arm ball joint that there is no looseness or gritty feeling. If there is looseness or gritty feeling, remove the lower arm assembly.(Refer to .)
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