Front Suspension

REMOVAL AND INSTALLATION

CAUTION:
^ During maintenance, take care not to contact the parts or tools to the caliper because the paint of caliper will be scratched. And if there is brake fluid on the caliper, wipe off quickly.
^ : Indicates parts which should be temporarily tightened, and then fully tightened with the vehicle on the ground in an unladen condition.

REMOVAL SERVICE POINT
[[A]] LOWER ARM AND CROSSMEMBER DISCONNECTION





Lift the transmission with a transmission jack, and then withdraw the front mounting bolt on the left lower arm assembly.

INSPECTION

Required Special Tools:
^ MB991006: Preload Socket
^ MB990326: Preload Socket

LOWER ARM BALL JOINT BREAKAWAY TORQUE CHECK





1. After shaking the ball joint stud several times, use special tool MB991006 to measure the breakaway torque of the ball joint.
Standard value: 0.5 - 3.4 Nm (4.4 - 30.1 inch lbs.)
2. When the measured value exceeds the standard value, replace the lower arm assembly.
3. When the measured value is lower than the standard value, check that the lower arm ball joint turns smoothly without excessive play. If there is no excessive play, the ball joint can be reused.

PILLOW BALL BUSHING ROTATION STARTING TORQUE CHECK





1. Insert the bolt to the lower arm pillow ball bushing. In the opposite direction, insert the washer then install the nut. After rotating the inner sleeve (contained washer) several times, measure the rotation starting torque of the lower arm pillow ball bushing using special tool MB990326.
Standard value: 0.5 - 3.0 Nm (4.4 - 26.6 inch lbs.)
2. When the measured value exceeds the standard value, replace the pillow ball bushing.
3. When the measured value is lower than the standard value, check that the lower arm pillow ball bushing turns smoothly without excessive play. If there is no excessive play, the pillow ball bushing can be reused.

LOWER ARM BALL JOINT DUST COVER CHECK
1. Check the dust cover for cracks or damage by pushing it with your finger.
2. If the dust cover is cracked or damaged, replace the lower arm.

NOTE: Cracks or damage to the dust cover may cause damage to the ball joint. When it is damaged during service work, replace the dust cover.

BALL JOINT DUST COVER REPLACEMENT

Required Special Tool:
^ MB990800: Ball Joint Remover and Installer





If the dust cover is damaged accidentally during service work, replace the dust cover as follows:
1. Remove the dust cover.
2. Apply multipurpose grease to the lip and inside of the dust cover.
3. Using special tool MB990800, press the dust cover until it contacts the lower arm assembly.
4. Press the dust cover with your finger to check that there are no cracks or damage in the dust cover.

LOWER ARM PILLOW BALL BUSHING REPLACEMENT

Required Special Tools:
^ MB990651: Bar
^ MB991576: Base
^ MB991816: Bushing Remover & Installer base





Replace the bushing as follows:





1. Use special tools MB990651, MB991576 and MB991816 to drive out the bushing.





2. Set the bushing to the lower arm assembly so that the bushing marking and the opening are as shown in the illustration.





3. Use special tools MB990651, MB991576 and MB991816 to press in the bushing until its outer tube is flush with the lower arm assembly surface.