Shock Absorber - Rear
Shock Absorber - Rear
Removal
1. CAUTION: Replacement of nuts and bolts: Various thread-locking devices are used on nuts and bolts throughout the vehicle. These devices restrict the number of times a nut or bolt can be used.
Raise rear of vehicle and support on stands.
2. Remove rear wheels.
3. CAUTION: Do not suspend caliper from brake hose as this will damage the hose.
Remove brake caliper from carrier.
Remove caliper spring clip.
Remove guide pin dust caps.
Slacken and withdraw guide pins.
Remove caliper from carrier and tie to suspension mounting bracket.
4. Disconnect wheel speed sensor connector.
5. Remove and discard tie strap securing wheel speed sensor harness to brake hose clip.
6. Mark wishbone at pivot pin eccentric flange marker to aid installation.
7. Remove pivot pin nut and washer.
8. CAUTION: To prevent damage to parking brake cable, the hub carrier must be supported on removal from wishbone.
Remove hub carrier from wishbone.
Remove pivot pin from hub carrier.
Withdraw hub carrier and support carrier on block of wood.
9. CAUTION: Note position of shims during removal. They must be returned to their original position during installation.
Noting their positions, remove shim from each end of pivot pin sleeve.
10. WARNING: ENSURE THE SPECIAL TOOLS ARE POSITIONED DIAMETRICALLY OPPOSITE ON THE SPRING AND THE ARMS ARE CORRECTLY SEATED.
WARNING: WHEN COMPRESSING THE SPRING, TIGHTEN THE SPECIAL-TOOL ADJUSTMENT BOLTS EVENLY.
Compress spring.
Install and align special tools 204-179 diametrically opposite on spring.
Evenly tighten special tool tensioning bolts to compress spring.
11. Remove shock absorber to wishbone mounting nut and bolt.
12. Remove nuts securing shock absorber/spring upper mounting to body.
13. Using special tools 204-179-1, secure upper mounting to spring.
14. Using a jack, retract shock absorber through wishbone aperture.
15. Position a bolt through the spring coils and shock absorber lower-bush, to temporarily locate shock absorber.
16. Partially lower jack for access to top of shock absorber.
17. If adaptive damping system is installed:
Disconnect shock absorber harness connector by pressing lugs down and pulling connector up.
18. Lower and remove jack.
19. Remove shock absorber/spring assembly from vehicle and place assembly on work bench.
20. With assistance, manually compress shock absorber and withdraw bolt from spring coils.
21. Remove special tools JD 199-1 and remove upper mounting from spring.
22. Remove shock upper mounting assembly from spring.
Remove spring upper isolator.
Remove upper spring pan.
Remove packing ring.
23. Remove shock absorber from upper mounting.
Position a wrench on shock absorber shaft flats to prevent rotation (wrench in socket on adaptive damping).
Remove shock absorber upper retaining nut.
Remove upper washer and isolator.
24. Remove upper mounting from shock absorber.
25. Clean upper mounting spring location.
26. Remove pigtail seat and clean wishbone lower spring location.
Installation
1. Install spring in upper mounting.
Install spring upper isolator.
Install upper spring pan.
Install packing ring.
2. Ensuring correct orientation, secure upper mounting to spring using special tools JID 199-1.
3. Position shock absorber in spring/upper mounting assembly.
Apply a thin coat of grease to upper mounting bush.
Ensure that washer, lower isolator and bush are correctly positioned on shock absorber shaft.
Position shock absorber shaft in upper mounting.
4. Secure top of shock absorber to upper mounting.
Install spring upper isolator.
Install upper washer.
Install but do not tighten locknut on shock absorber.
5. Manually retract shock absorber and place a bolt through spring coils and shock absorber lower-bush.
6. Secure shock absorber to upper mounting.
Position a wrench on shock absorber shaft flats to prevent rotation (wrench in socket on adaptive damping).
Tighten shock absorber upper lock nut to 30-40 Nm (16-18 Nm on adaptive damping).
7. Position shock absorber/spring assembly to vehicle.
8. With assistance, manually retract shock absorber and remove temporary securing bolt.
9. Remove special tools securing upper mounting to spring. JD 199-1.
10. Align shock absorber lower bush to wishbone and install mounting bolt.
11. If adaptive damping system is installed:
Connect shock absorber harness connector, ensuring connector key locates in socket keyway.
12. Seat upper mounting in body location.
If adaptive damping system is installed, ensure harness is correctly positioned
13. Ensuring that spring is seated on isolator and spring pan, position upper spring pan on body studs.
14. Install spring pigtail lower seat in wishbone.
15. Release spring tension.
Ensuring that spring is correctly located, evenly slacken adjuster bolts on special tools 204-179.
16. Remove special tools 204-179.
17. Fully seat and secure upper spring pan to body.
Ensure spring pan is correctly seated in body location.
Install nuts securing spring pan to body studs and tighten to 17-23 Nm.
18. Install nut to shock absorber lower-mounting bolt and tighten to 80-100 Nm.
19. Install shims on pivot pin sleeve in positions noted during removal.
20. Install hub assembly to wishbone assembly.
Position hub and carrier to wishbone.
Install pivot pin ensuring that eccentric flange correctly seats in wishbone groove.
21. Install pivot pin nut.
Align marker on pivot pin flange with mark made on wishbone.
Install nut on pivot pin and ensuring pin position is not disturbed, tighten nut to 88-118 Nm.
22. Release brake caliper from suspension tie.
23. Install brake caliper on carrier.
Position caliper assembly on carrier.
Install guide pins and tighten to 25-30 Nm.
Install dust caps.
Install brake caliper spring clip.
24. Connect wheel speed sensor harness to sensor.
25. Using new tie strap, secure wheel speed sensor harness to brake hose clip.
26. Install rear wheel.
27. Remove stands and lower vehicle.
28. Carry out rear wheel alignment check and adjust as necessary.