37 12 092 Replacing rear left or right spring strut shock absorber

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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

WARNING: Completely read the respective operating instructions before using special tools 31 3 340 !
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!

IMPORTANT:

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.

IMPORTANT:

When replacing the spring strut, replace the auxiliary damper as well!

Necessary preliminary tasks:

Remove REAR SPRING STRUT SHOCK ABSORBER UNIT .

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.

Fig 1: Clamping Special Tool 31 3 341 In Vice

G09947511

Courtesy of BMW OF NORTH AMERICA, INC.

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 .

WARNING: 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 !
Compress coil spring until stress on piston rod is relieved.

Fig 2: Compressing Coil Spring Until Stress On Piston Rod

G09947512

Courtesy of BMW OF NORTH AMERICA, INC.

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.

Fig 3: Removing Spring Pad With Dust Boot

G08505338

Courtesy of BMW OF NORTH AMERICA, INC.

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.

Fig 4: Identifying Auxiliary Damper With Protective Tube And Spring Pad

G09947514

Courtesy of BMW OF NORTH AMERICA, INC.

Relieve tension on coil spring and remove from special tools 31 3 353 . See 0493567 313353 HOLDER or 2213029 313353 TOOL MECHANICAL TOOL .

Fig 5: Removing Coil Spring Tension

G09947515

Courtesy of BMW OF NORTH AMERICA, INC.

Assembly:

WARNING: Do not compress coil spring to full extent.
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.

Fig 6: Compressing Coil Spring

G09947515

Courtesy of BMW OF NORTH AMERICA, INC.

Check auxiliary spring (1) with protective tube and spring pad (2) for damage, replace if necessary.

Fig 7: Identifying Auxiliary Damper With Protective Tube And Spring Pad

G09947514

Courtesy of BMW OF NORTH AMERICA, INC.

Insert spring strut into tensioned coil spring.

Fig 8: Identifying Spring Strut And Tensioned Coil Spring

G08505343

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Lower end of coil spring must rest on stop of spring pad!

Fig 9: Identifying Lower End Of Coil Spring

G09947519

Courtesy of BMW OF NORTH AMERICA, INC.

Check support bearing (1) and spring pad (2) for damage, replace if necessary.

IMPORTANT: The arrows on support bearing (1) and spring pad (2) must be aligned.

Fig 10: Aligning Support Bearing And Spring Pad

G09947520

Courtesy of BMW OF NORTH AMERICA, INC.

Mount support bearing and spring pad on piston rod.

IMPORTANT: Align support bearing and spring pad to end of coil spring.

Fig 11: Identifying Support Bearing And Spring Pad On Piston Rod

G09947521

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: The marks (1) must be aligned with the hole in rubber mount (2).

Fig 12: Identifying Marks With Hole In Rubber Mount

G09947522

Courtesy of BMW OF NORTH AMERICA, INC.

Replace nut and tighten down with special tool 33 0 040 .

Tightening torque 33 52 2AZ .

Relieve tension on coil spring.

Fig 13: Relieving Tension On Coil Spring

G08505338

Courtesy of BMW OF NORTH AMERICA, INC.

Impact screwdrivers are prohibited!

Risk of damage inside the shock absorber!