Replacing Front Left or Right Spring Strut Shock Absorber (Vehicles From 03/2002)
Replacing Front Left or Right Spring Strut Shock Absorber (Vehicles From 03/2002)
Special Tools Required:
- 31 2 210
- 31 3 340
- 31 3 341
- 31 3 355
Important!
When replacing shock absorber/spring strut, renew auxiliary damper!
Warning!
Before using the special tool 31 3 340 take care to read through the Owner`s Handbook!
All the safety information and instructions contained in the Owner's Handbook must be strictly observed!
Failure to obeserve these safety precautions and instructions increases the risk of serious physical injury, damage to your health and damage to property and equipment!
Important!
1. Prior to each use, check the special tools for defects, modifications and operational reliability.
2. Damaged/modified special tools must not be used!
3. No changes or modifications may be made to the special tools!
4. These special tools are intended solely for the purpose of tightening and relieving cylindrical and tapered suspension springs.
5. Keep special tools dry, clean and (down to the spindle) free from grease.
6. Impact screwdrivers are prohibited!
7. Do not impact coil spring to full extent.
Necessary Preliminary Work:
- Completely remove front spring strut.
NOTE:
When a spring strut shock absorber is replaced, a spring strut shock absorber witht he same identification marking must be installed.
Clamp special tool 31 3 341 to guide (1) in vice.
Slide special tools 31 3 355 with protective inserts into each housing via taper of special tool 31 3 341.
Lock pins (2) must be heard and felt to lock in position.
Warning!
Keep protective pads free of oil and grease.
Spring cup must be inserted from the chamfered side of special tool 31 3 341.
The lock pins must be heard and felt to lock in position.
Check fit of spring seats.
Two coil spring windings must be located between spring retainers 31 3 355.
End of spring (1) must point vertically upwards.
Tensions coil spring to point where support bearing is unloaded.
Warning!
The spring coil must lie completely in the recess when the spring is tensioned in the spring retainer.
The special tool 31 3 341 must not be tightened or release with and impact screwdriver.
The coils may not be tensioned to the full extent.
Only tension coil springs to the point where support bearing is unloaded.
The nut may only be released when the spring coil is resting completely in the recess of the spring retainer! Repeat tensioning procedure if necessary!
Release nut with special tool 31 2 210.
Grip piston rod with wrench.
Remove spring strut shock absorber.
Installation Note:
- Replace self-locking nut.
- Tightening torque, 31 31 2AZ
Installation Note:
- Before fitting support bearing, make sure that shim (1) and washer (2) are fitted as shown.
NOTE:
If a new coil spring is fitted, observe the following:
- Two coil spring windings must be located between spring retainers 31 3 355.
- End of spring (1) at lower end must point vertically upwards.
Make sure that spring pad is fitted as shown in pos. (1) on spring cup.
End of spring (2) must be positioned as shown on spring pad.
Check whether protective grommet (2) and auxiliary damper (1) are properly mounted on shock absorber.
Screw self-locking nut back onto piston rod.
Release coil spring until it is fully resting on lower spring cup.
The end (1) of the coil spring must be aligned correctly at the rubber seal (2) of the spring seat.
Firmly tighten self-locking nut.
Grip piston rod with wrench.
Installation Note:
- Replace self-locking nut.
- Tightening torque, 31 31 2AZ.
Release coil spring completely.