As the control arm is spring loaded, the hydraulic transmission jack should be lowered strictly vertically to prevent the arm from slipping off abruptly and being displaced.
Step 19
Remove the spring.
Step 20
Clean the coil spring mounting seats. Use a wire brush. Use all-purpose cleaning spray.
Step 21
Clean the suspension arm mounting seats. Use a wire brush. Use all-purpose cleaning spray.
Step 22
Install the rubber spacer on the new coil spring.
Step 23
Install the spring.
AUTODOC recommends:
Make sure that the coil spring is correctly positioned in its mounting seats.Both coil springs of the rear suspension should be replaced simultaneously.The replacement procedure is identical for the left and right coil springs of the rear suspension.
Step 24
Install the control arm on the subframe. Use a hydraulic transmission jack. If necessary, use a crowbar.
Step 25
Install the fastening bolt.
Step 26
Support the rear control arm. Use a hydraulic transmission jack.
Step 27
Connect the sway bar link to the suspension arm.
Step 28
Install the fastening bolt.
Step 29
For tightening the fasteners correctly, you have to jack up the suspension components to their working position.
Step 30
Tighten the fastener connecting the control arm to the subframe. Use a combination spanner #19. Use a drive socket #19. Use a torque wrench. Tighten it to 70 Nm torque.
Step 31
Tighten the lower fastener of the shock absorber. Use a combination spanner #17. Use a drive socket #17. Use a torque wrench. Tighten it to 55 Nm torque.
Step 32
Tighten the fastener connecting the sway bar link to the suspension arm. Use a combination spanner #13. Use a drive socket #13. Use a torque wrench. Tighten it to 40 Nm torque.
Step 33
Tighten the fasteners connecting the control arm to the rear knuckle. Use a combination spanner #22. Use a drive socket #22. Use a torque wrench. Tighten it to 70 Nm torque.
Step 34
Remove the support from under the rear control arm.
AUTODOC recommends:
Mercedes W201 – Do not lower the transmission jack sharply to avoid damaging components and mechanisms of the car.
Step 35
Clean the wheel rim mounting seat. Use a wire brush. Use all-purpose cleaning spray.
Step 36
Treat the surface where the brake disc contacts the wheel rim. Use ceramic grease.
Step 37
Install the wheel.
AUTODOC recommends:
To avoid injury, hold up the wheel when screwing in the fastening bolts.
Step 38
Screw in the wheel bolts. Use wheel impact socket #17. Use a ratchet wrench.
Step 39
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 110 Nm torque.
Step 40
Remove the jacks and chocks.
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