Examine suspension spring rubber spacers. Replace them if needed.
Step 18
Clean the coil spring mounting seats. Use a wire brush. Use WD-40 spray.
Step 19
Install the coil spring together with the rubber mounts into the mounting seats. Use a crowbar.
Step 20
Clean the mounting seats and the thread of the suspension arm. Use a wire brush. Use WD-40 spray.
Step 21
Attach the suspension arm to the rear knuckle. Install the fastening bolt. Use a flat screwdriver.
Step 22
Tighten the fastener connecting the suspension arm to the rear knuckle. Use a combination spanner #18. Use a drive socket #19. Use a torque wrench. Tighten it to 85 Nm torque.
Step 23
Connect the ABS sensor wiring.
Step 24
Support the arm. Use a hydraulic transmission jack.
Step 25
Install the fastening bolt.
Step 26
Tighten the lower fastener of the shock absorber. Use a drive socket #16. Use a torque wrench. Tighten it to 70 Nm torque.
Step 27
Remove the support from under the arm.
Replacement: coil springs – Mercedes W169. Tip from AUTODOC:
Lower the hydraulic transmission jack smoothly, without jerks, to avoid damaging assemblies and mechanisms.
Step 28
Treat the shock absorber fasteners. Use copper grease.
Step 29
Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 30
Clean the brake disk surface. Use a brake cleaner.
AUTODOC recommends:
Replacement: coil springs – Mercedes W169. After applying the spray, wait a few minutes.
Step 31
Install the wheel.
Replacement: coil springs – Mercedes W169. Tip:
To avoid injury, hold up the wheel when screwing in the fastening bolts.
Step 32
Screw in the wheel bolts. Use wheel impact socket #17.
Step 33
Lower the car and working in a cross order, tighten the wheel bolts. Use wheel impact socket #17. Use a torque wrench. Tighten it to 120 Nm torque.
Step 34
Remove the jacks and chocks.
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