37 12 092 Replacing rear left or right spring strut shock absorber
Special tools required:
- 31 3 340
- 31 3 341
- 31 3 353 . See 0493567 313353 HOLDER or 2213029 313353 TOOL MECHANICAL TOOL
- 33 0 040
Strictly adhere to all safety information and instructions in the operating instructions!
Failure to observe these safety precautions and instructions increases the risk of serious physical injury, damage to your health and damage to property and equipment!
- Prior to each use, check the special tools for defects, modifications and operational reliability.
- Damaged/modified special tools must not be used!
- No changes or modifications may be made to the special tools!
- These special tools are intended solely for the purpose of tightening and relieving cylindrical and tapered suspension springs.
- Keep special tools dry, clean and (down to the spindle) free from grease.
- Impact screwdrivers are prohibited!
- Do not compress coil spring to full extent.
- When replacing the spring strut, replace the auxiliary damper as well!
Necessary preliminary tasks:
Removing:
Clamp special tool 31 3 341 in vice.
Place special tools 31 3 353 See 0493567 313353 HOLDER or 2213029 313353 TOOL MECHANICAL TOOL from top on special tool 31 3 341 . Retaining bolts (1) must be felt and heard snapping into place.
Clean coil spring to remove all coarse dirt and mount on special tools 31 3 353 . See 0493567 313353 HOLDER or 2213029 313353 TOOL MECHANICAL TOOL .
Compress coil spring until stress on piston rod is relieved.
Release nut with special tool 33 0 040 .
Remove spring pad with dust boot.
Remove shock absorber with auxiliary damper, protective tube and spring pad from tensioned coil spring.
Impact screwdrivers are prohibited!
Risk of damage inside the shock absorber!
If necessary, remove auxiliary damper (1) with protective tube and spring pad (2) from spring strut.
Relieve tension on coil spring and remove from special tools 31 3 353 . See 0493567 313353 HOLDER or 2213029 313353 TOOL MECHANICAL TOOL .
Assembly:
Coils of coil spring must be located completely in recesses of special tools 31 3 353 ! See 0493567 313353 HOLDER or 2213029 313353 TOOL MECHANICAL TOOL
Tension coil spring.
Check auxiliary spring (1) with protective tube and spring pad (2) for damage, replace if necessary.
Insert spring strut into tensioned coil spring.
Check support bearing (1) and spring pad (2) for damage, replace if necessary.
Mount support bearing and spring pad on piston rod.
Replace nut and tighten down with special tool 33 0 040 .
Tightening torque 33 52 2AZ .
Relieve tension on coil spring.
Impact screwdrivers are prohibited!
Risk of damage inside the shock absorber!