Disassembly and Assembly

DISASSEMBLY AND ASSEMBLY

DISASSEMBLY SERVICE POINTS
[[A]] STRUT NUT REMOVAL

CAUTION:
^ Do not tighten the bolt of special tool MB991237 too tight. Special tool MB991237 will be broken if the allowable tightening torque of 74 Nm (54 ft. lbs.) is exceed.
^ Install special tool MB991238 evenly, and so that the maximum length will be attained within the installation range.
^ Do not use an impact wrench to tighten the bolt of special tool MB991237, otherwise the special tool will break.





1. Use special tools MB991237 and MB991238 to compress the coil spring.

WARNING:
^ Do not use an impact wrench to remove the strut nut. Vibration of the impact wrench will cause special tools MB991237 and MB991238 to slip and cause personal injury.
^ Vibration of the impact wrench will cause the valve inside the strut to drop out.





2. Use special tools MB991681 and MB991682 to loosen the strut nut.

[[B]] FRONT SUSPENSION STRUT REMOVAL

WARNING: Wear goggles when drilling to protect your eyes from flying metal debris.





The gas must be discharged from the front suspension strut assembly before discarding it. Place the strut horizontally with its piston rod extended. Then drill a hole of approximately 3 mm (0.1 inch) in diameter at the location shown in the illustration and discharge the gas.

ASSEMBLY SERVICE POINTS
]]A[[ STRUT NUT INSTALLATION
1. Ensure that the bearing is seated correctly.





2. Install special tools MB991237 and MB991238 to the strut same as its removal.

CAUTION: Do not use an impact wrench to tighten the bolt of special tool MB991237, otherwise the special tool will break.

3. While the coil spring is being compressed by the special tools, temporarily tighten the strut nut.





4. Align the hole in the strut spring lower seat with the hole in the upper spring seat.

NOTE: Using a rod as shown facilitates the alignment.

5. Correctly align both ends of the coil spring with the grooves in the spring seat, and then loosen the special tools.

CAUTION: Do not use an impact wrench to tighten the strut nut, otherwise the strut nut will be damaged. Vibration of the impact wrench will cause the valve inside the strut to drop out.





6. Using special tools MB991681 and MB991682, tighten the strut nut to 60 ± 10 Nm (45 ± 7 ft. lbs.).





7. After tightening the strut nut, fill the multi purpose grease to the bearing part of strut insulator.

INSPECTION
^ Check the strut bearing for wear or rust.
^ Check the rubber parts for damage or deterioration.
^ Check the coil spring for deformation, deterioration or damage.
^ Check the front suspension strut for deformation.