31 31 031 Replacing front left or right spring strut shock absorber: Installation
Check auxiliary damper (1) and spring pad (2) for damage, replace if necessary.
Check spring pad (1), support bearing lower section (2), protective tube (3) and support bearing upper section (4) for damage, replace if necessary.
Insert shock absorber into coil spring.
Accommodate coil spring and spring strut with special tools 31 3 351 and 31 3 353 .
Coils of coil spring must be located completely in recesses of special tools 31 3 351 and 31 3 353 !
Tension coil spring until support bearing flange can be mounted.
Attach support cup (1) and protective tube (2) to piston rod.
Left spring strut only:
Coding (3) of spring pad must be seated in recess (2) opposite stud bolt (1)!
Version with Vertical Dynamics Management:
Stud bolt (4) must be flush with positioning pin (5)!
Right spring strut only:
Coding (3) of spring pad must be seated in recess (2) below stud bolt (1)!
Version with Vertical Dynamics Management:
Stud bolt (4) must be flush with positioning pin (5)!
Attach support bearing flange (1) to piston rod.
Align support bearing upper section (3) as illustrated and attach to inner section (2) of support bearing flange (1).
Attach flexible disc (1) to piston rod.
Replace nut (2) and tighten down (gripping piston rod in so doing).
Tightening torque 31 31 2AZ .
Relieve tension on coil spring.
Check installation position of protective tube (2), correct if necessary.