Pic. 4.19. Strut spring compression
With a special tool (J38402, A-42) compress the strut spring so that the impact on the spring cups is minimal (pic. 4.19).
Note. Do not use pneumatic tools (impact wrench).
Loosen the nut on the upper end of the shock absorber rod.
Remove the strut damping mount, upper spring cup, spring, and protective boot from the front strut assembly.
Examination
Check the strut damper bearing for wear or damage.
Check rubber parts for damage or deterioration.
Check the spring for wear or deformation (sagging and stiffness reduction).
Pic. 4.20. Shock absorber check
Check the shock absorber for abnormal resistance to the movement of the rod and extraneous noise (pic. 4.20).
Rack Disposal
Pull out the shock absorber rod until it stops.
Pic. 4.21. Gas outlet
Drill a hole at the location marked «A» in figure 4.21, and release the gas from the shock absorber.
Attention! The gas itself is harmless, but when it exits the hole, chips left after drilling can fly out, so be careful.
Assembly
Pic. 4.22. Installing the lower spring spacer
Install the lower spring spacer so that the tabs on it are aligned with the holes in the lower spring cup (pic. 4.22).
Install the protective cover on the shock absorber.
With a special tool (J38402, A-42) compress the spring.
After the spring is fully compressed, install it on the shock absorber.
Note. Install the spring so that the identification mark is located on the side of the steering knuckle.
Pic. 4.23. Installing the upper spring cup and damping strut mount
Extend the shock absorber rod until it stops, install the upper spring cup and strut damping support assembly (pic. 4.23).
Note. Align the flat part of the D-hole of the upper spring cup with the flat part of the non-threaded part of the damper rod.
Pic. 4.24. Spring coil alignment marks
Align the top and bottom coils of the spring with the corresponding notches on the top and bottom strut spring cups, then temporarily tighten the self-locking nut (pic. 4.24).
Remove the special tool.
Tighten the self-locking nut to a nominal torque of 50–70 Nm.
Apply the specified grease to the strut damper bearing and install the protective cap.
Attention! Be careful when applying lubricant to avoid getting it on the rubber part of the damping mount.
Recommended grease: MS511-11 or equivalent.