Disassembly
Remove the suspension strut from the vehicle.
Fix the shock absorber strut of the front suspension in the conductor 3 (pic. 7.11) or in a vice with soft jaws and place the special tool V-3612 on the coils to compress the spring. At the same time, make sure that the coils of the spring are securely captured by the protrusions of the device (see fig. 7.12). The spring has a very high compression force, so use only a very reliable tool. Never tie the spring with wire. With special tool V-3612, compress the spring so that it moves away from the top of the rack (see fig. 7.11).
Secure the shock absorber rod with a 7 mm Allen wrench from turning and, using a second ring wrench or AUDI 3353 wrench, unscrew the central shock absorber rod mounting nut (see fig. 7.16).
Remove the bearing, washer and upper spring plate from the shock absorber rod.
Remove the spring together with the spring compressor:
Remove protective cover 1 (pic. 7.13) and spring seat 2. Using a plastic hammer, knock down the lower spring plate 3 upwards (pic. 7.13).
Assembly
Attention. When installing, it is necessary to use springs with the same stiffness on the same axle of the car (with the same color marking).
Secure the front shock absorber in a jig or in a vice with soft jaws. If a previously installed shock absorber is installed, it must first be checked before installation.
Check the shock absorber for signs of damping fluid leaks. Check the entire length of the damper rod for pitting. Check the shock absorber housing for mechanical damage. Set the shock absorber to a vertical position and check its operation by moving the shock absorber rod through its full stroke. Also check the operation of the shock absorber by moving the shock absorber rod up and down a distance of 50-100 mm. In all cases, the shock absorber rod should move smoothly with perceptible resistance. If the shock absorber rod moves jerkily or there are mechanical damages, the shock absorber must be replaced.
Install the lower spring plate on the shock absorber, while the hole in the spring plate should be perpendicular to the hole in the shock absorber lower mounting yoke (see fig. 7.14). The deviation of the hole in the lower plate of the spring from the perpendicular position should be no more than±2°.
Install the spring support and protective cover.
Install a pre-compressed coil spring with a compression tool on the lower spring seat so that its lower end is correctly located in the lower spring plate (see fig. 7.15).
Install the upper spring plate so that the axle. passing through the mounting threaded holes, was located at an angle of 11°with respect to the axis of the lower mounting of the suspension strut (see fig. 7.16). Please note that the mounting of the upper spring plate for the left and right shock absorber struts are different.
Holding the shock absorber rod from turning with a wrench for internal hexagons, screw on a new nut with a flange for fastening the shock absorber rod and tighten it with a torque of 60 Nm (see fig. 7.17).
Carefully remove the spring compressor.
Check that the upper coil of the spring is correctly located on the upper spring plate (see fig. 7.18).
Install the suspension strut in the car.
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