Contents: Removal ↓ Installation ↓
Note. It is convenient to perform the work on removing, installing, replacing the shock absorber and spring of the rear suspension in an inspection pit. But if necessary, you can remove and install the spring and shock absorber of the rear suspension by hanging the rear part of the car on stands.
Recommendation: If one of the shock absorbers or springs is faulty, replace them in pairs.
To perform repair work on replacing the shock absorbers and springs of the rear suspension, you will need:
- inspection pit or overpass;
- stand (see point 2 "Special tools and devices");
- assistant (desirable).
Removal
1. Prepare the car for work (see points 1, 2b, 3 and 4 "Preparing a car for maintenance and repair").
Note. If the replacement of the shock absorber and rear suspension springs will be performed on a flat area, remove the rear wheel of the car from the side of the removable shock absorber and install a reliable stand under the car (see points 1, 2 a, 3 and 4 "Preparing a car for maintenance and repair").
2. Bend back the edge of the side trim of the trunk (sedan) or remove the side trim of the trunk from the side of the shock absorber being removed (hatchback and station wagon).
Recommendation: It is better to perform the following operation using a special device for disassembling the suspension strut (see points 5 and 6 "Front suspension strut - disassembly and assembly"), since it is not always possible to keep the rod from turning with an open-end wrench.
3. Holding the shock absorber rod with a 6 mm open-end wrench, use a 17 mm open-end wrench to unscrew the rod nut.
4. Remove the support washer and the upper cushion for mounting the shock absorber rod from the shock absorber rod.
5. Using two 19 mm wrenches, unscrew the nut of the bolt securing the lower end of the shock absorber to the rear axle beam and remove the bolt.
6. Move the lower end of the shock absorber towards the rear of the car and remove the shock absorber.
7. Remove the spring and its gasket from the shock absorber, and, if necessary, remove the lower cushion and spacer sleeve from the shock absorber rod.
Installation
Note: The rear suspension must be equipped with springs of the same class. Class A is marked with white marks, and class B is marked with black marks (for cars supplied for export, marking is yellow and green respectively).
1. Before installing the shock absorber, secure the rubber gasket to the spring with insulating tape.
2. Install the spring on the shock absorber and fully extend the shock absorber rod, put the spacer sleeve and lower cushion on the rod (if they are not on the stock).
Warning: Orient the rear shock absorber so that the end of the lower spring coil faces the wheel.
3. Insert the rear shock absorber rod into the hole in the body cup, while the assistant puts the upper cushion and a special washer on the rod and tightens the rod nut by several turns.
Note. If you don't have an assistant, you can first secure the rear shock absorber to the rear suspension beam. Then gently lower the car onto the wheels using a jack, making sure that the shock absorber rod enters the body hole and only then put on the upper cushion with the washer and tighten the nut
4. Place a jack under the beam arm and lift the arm until the holes in the shock absorber and beam bracket align. Install the lower shock absorber mounting bolt and tighten its nut (without delay).
5. Install the removed wheel on the car (if the work was carried out without an inspection pit) and lower the car onto its wheels. Press the rear of the car several times to self-install the rear suspension elements.
6. Tighten the shock absorber rod mounting nut to a torque of 50-61.7 N·m (5.1-6.3 kgf·m).
7. Tighten the nut of the rear shock absorber lower mounting bolt to a torque of 66.6-82.3 N·m (6.8-8.4 kgf·m).