Table of contents: Removal ↓ Installation ↓
- 1 - Flange nut, 50Nm, self-locking, be sure to replace
- 2 — Shock absorber support
- 3 — Washer
- 4 - Support
- 5 - Coil spring
- 6 - Additional spring
- 7 - Protective cover
- 8 — Protective cap
- 9 — Lower spring support
- 10 — Lower spring plate
- 11 — Shock absorber
Removal
1. Remove the shock absorber strut.
2. The shock absorber strut can only be disassembled using a special tool.
Warning: The shock absorber spring is compressed with great force. To remove the shock absorber, it is necessary to compress the spring with a special tool.
Warning: Never remove the shock absorber unless the spring is securely compressed. When installing the spring compressor, make sure that the spring coils are securely gripped and that the compressor cannot slip off. The spring is compressed with great force. Use only a reliable tool. Never tie the spring with wire. Risk of accident!
3. Clamp the spring with the tip in a vice.
5. Compress the spring with a suitable tool. AUDI service stations use the VAG 1752/1 (1) tool for this purpose.
6. When compressing, ensure that the spring is correctly positioned in the device (arrow on the accompanying illustration). (1) – compression device, (2) – support for spring coils.
7. Compress the spring so that the top plate is released.
8. Unscrew the flange nut securing the stem. While doing this, hold the stem from turning with an Allen key. This requires a special tool (2, 3 and 4) as shown in Figure 4.3 (HAZET 4910/13 or AUDI-T10001/7, T10001/11 and T10001/3).
9. Remove the compressed spring together with the compressor tool.
10. Remove the protective cover (1) and the lower spring support (2).
11. Mark the position of the lower plate in relation to the shock absorber (4).
12. Loosen the plate (3) using a plastic hammer and lift it upward.
Installation
Warning: There are springs of different tolerance groups. Only springs with the same color mark should be used. It is recommended to replace springs and shock absorbers in pairs, i.e. on both sides of the car.
1. Clamp the new shock absorber cartridge with the tip in the shock absorber strut mounts or in a vice with pads.
2. Transfer the mark from the old one to the new shock absorber. Carefully install the lower spring plate with a plastic hammer until it stops on the shock absorber. Make sure that the mark on the plate matches the mark on the shock absorber.
- A — Shock absorber/control arm axis
- I — Left shock absorber strut, B = 65±2°
- II — Right shock absorber strut, C = 87±2°
3. The position of the lower plate is determined by the dimensions shown in the illustration.
4. The cut of the plate (arrow) must provide access to the body.
5. Reinstall the lower spring support and protective cover.
6. Install the compressed spring together with the compression device. The end of the spring coil should be adjacent to the stop.
7. Install the shock absorber support with the upper spring support on the compressed spring so that the spring support is adjacent to the end of the spring coil (arrow on the accompanying illustration). A deviation of ±2° is allowed.
8. Install the washer and shock absorber support.
Caution: Make sure the end of the spring is in contact with the stop of the upper spring support.
9. Tighten the new flange nut with the special tool to the torque 50Nm. Do not release the spring yet.
10. Press the shock absorber strut vertically using the VAG 1752/2 compression tool.
11. Release the lower locking lever and rotate the upper spring plate until the shock absorber support scale is at the 7° mark.
12. Make sure that the ends of the spring are in contact with the stops of the upper and lower spring supports.
- I — Left in the direction of travel
- II - On the right in the direction of travel
- A - Shock absorber/control arm axis
- B — Installation angle
13. Lock the locking lever.
14. The spring support lever of the VAG 1752/2 tool (arrow) must coincide with the center of the support.
15. Carefully loosen the spring compressor and remove it.
16. Check the adjustment. If necessary, repeat the procedure.
17. Reinstall the shock absorber strut, refer to the relevant section.
(This article was copied from an online resource: «AudiManual.ru»)