Loosen the nut (A) and separate the ball joint from the lower arm.
Tightening torque: 58.8 ~ 71 N·m
Loosen the bolts and nuts and remove the lower arm (A) from the subframe. Tightening torque FRONT: 117.7 ~ 137 N·m REAR: 156.9 ~ 176 N·m ft-lbf (To)(Rear)
Inspection
Check the ball joint bushing for wear and damage.
Make sure the lower arm is not deformed.
Check all bolts and nuts.
Check the ball joint for grease leakage, and replace if leaking.
Check the ball joint swivel friction by hand, and replace if there is no friction.
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Test yourself
A quick Hyundai i20 quiz: every answer comes with an explanation and a link to the manual page.