31 31 031 Replacing front left or right spring strut shock absorber
Special tools required:
- 31 3 340
- 31 2 230
- 2 240 516
- 2 364 829
- 31 3 341
- 2 240 482
- 2 240 523
- 2 364 828
- 2 240 486
- 2 240 487
- 2 412 607
- 2 240 490
- 0 496 516
- 0 496 515
- 2 360 213
- When replacing the spring strut, replace the auxiliary damper as well!
All the safety precautions and instructions contained in the Owner's Handbook must be strictly observed!
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!
- Use only the BMW approved special tool!
- 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!
Risk of damage inside the shock absorber!
- Do not compress coil spring to full extent.
Necessary preliminary work:
- Remove the FRONT SPRING STRUT .
Slacken nut (1).
Tightening torque, refer to: 31 31 3AZ .
Take off holder (2).
Pull out screw (3).
Expand swivel bearing with special tool 31 2 230 and pull off spring strut.
Installation note:
Keep swivel bearing and spring strut in lower area clean and free from oil and grease.
Screw head must point in direction of travel.
Replace screw (3) and self-locking nut (1).
Installation note:
Expand swivel bearing (1) with special tool 31 2 230.
Align swivel bearing (1) to positioning pin (2) on the rear side of the spring strut along the gap and slide all the way in.
Check protective inserts for wear before application, replace if necessary.
Use of faulty protective inserts leads to coil spring damage. This can lead to coil spring breakage (corrosion).
Pressure plate 2 240 516 must always be used with protective insert 2 364 829.
With support bearings with 3 screws (support bearing on body):
Clamp special tool 31 3 341 in vice.
Fit special tool 2 240 516 and 2 240 482 onto special tool 31 3 341 until retaining bolt (1) can be felt and heard to snap into place.
Insert centering ring 2 240 523 into the fixing plate 2 240 482.
Check seat of special tools 2 240 516 and 2 240 482 with centering ring 2 240 523. Adjust as required.
With support bearings with 5 screws (support bearing on body):
Clamp special tool 31 3 341 in vice.
Fit special tool 2 240 516 and 2 240 482 onto special tool 31 3 341 until retaining bolt (1) can be felt and heard to snap into place.
Insert centering ring 2 364 828 into the fixing plate 2 240 482.
Check seat of special tools 2 240 516 and 2 240 482 with centering ring 2 364 828. Adjust as required.
Installation of brake onto mounting plate:
Move counter support 2 240 486 into the correct position/bore hole (see Figure A or B)
- Standard suspension: Screw connection using bore holes 1 and 17
- Sports suspension settings: Screw connection using bore holes 7 and 15
Turn centering ring 2 240 523 until the counter support 2 240 486 can be screwed into place at the specified position.
Screw together counter support with mounting plate and the centering ring with screws (1) so they are hand-tight.
With support bearings with 3 screws (support bearing on body):
Clean coil spring to remove contamination.
Spring must be free of grease, clean and dry.
Insert spring strut into the spring tensioner.
The support bearing must be completely fitted against the centering ring 2 240 523.
The lower spring coil must be placed completely into the recess of special tool 2 240 516!
With support bearings with 5 screws (support bearing on body):
Clean coil spring to remove contamination.
Spring must be free of grease, clean and dry.
Insert spring strut into spring tensioner.
The support bearing must be completely fitted against the centering ring 2 364 828.
The lower spring coil must be placed completely into the recess of special tool 2 240 516!
Before application: Check protective insert for wear, replace if necessary.
Use of faulty protective inserts leads to coil spring damage. This can lead to coil spring breakage (corrosion).
You must use pressure plate 2 240 487 with protective insert 2 412 607.
Affix the pressure plate 2 240 487 with screws 2 240 490!
The gummed side of the pressure plate 2 240 487 must be fitted against the top spring coil.
Position the spring strut so that the end of spring (1) protrudes by 40 mm beyond the pressure plate 2 240 487.
Tighten the screws 2 240 490 evenly at 8 Nm.
When the end of the spring begins to twist relative to the pressure plate, tensioning must be stopped immediately.
Correct seating of the pressure plate must be checked, and the rubberized mount and pressure plate must be checked for wear!
Tension coil spring with spring tensioner 31 3 341 until stress on piston rod is relieved.
Loosen the nut with the special tool 0 496 516 and the appropriate special tool 0 496 515 or 2 360 213.
Remove the spring strut with auxiliary damper.
Installation note:
replace nut.
Impact screwdrivers are prohibited!
Risk of damage inside the shock absorber!
Installation note:
Remove the spring pad (1) and mount onto the new spring strut, replace if necessary.
Replace the auxiliary damper (2).
Insert spring strut into tensioned coil spring.
Check the installation position of the protective tube, correct the fold if necessary.
replace nut.
Parts: Nut
Tighten the nut with the special tool 0 496 516 and the appropriate special tool 0 496 515 or 2 360 213.
Tightening torque, refer to: 31 31 2AZ
Align all components correctly to each other and relive tension on coil spring.
Impact screwdrivers are prohibited!
Risk of damage inside the shock absorber!