Hang the car, remove the wheels and driveshaft. Remove the wire retainer on the left and right brake caliper calipers and secure them to the body with a wire clip. Remove brake discs.
Remove impulse sensors (right and left) wheel speed and disconnect the parking brake cable from the lever. Remove the heat shield above the cardan shaft and the gearbox ventilation pipe. Disconnect the loops from the ride height sensor, brake pad wear.
On a vehicle with an air spring, the fuse for the air supply system must be removed to prevent it from tripping. Loosen the piping to the distribution manifold to depressurize the system.
Remove bolts (2, see fig. 14.56) and disconnect shock absorbers (1) from swing arms.
support the beam (1, fig. 14.40) rear axle jack «00.2.030/040» and adaptation «33.4.221/226».
Loosen left and right screws (6, see fig. 14.2) and carefully lower the beam (1) rear bridge. Check the condition of the beam, damaged threads on the body side can be restored using threaded spiral inserts (М12х14х18), while the insert should not protrude from the repaired thread.
Installation of the rear axle beam assembly should be carried out in the reverse order, while it is necessary to apply a thrust washer (1, fig. 14.44) on four rubber-metal hinges.
Thrust washers with studs (4, see fig. 14.2) must be installed from the bottom of the beam, while the studs of the thrust washer must be parallel to the axis of the vehicle.
When installing the beam, its tide must enter the nest of the hole in the hinge support, and be fixed with a locking bracket.
New bolts (M14x1.5x138) fasten the beam to the vehicle body gradually, crosswise, with a final torque of 163 Nm (16.3 kgf·m). Switch on the air spring pump.
On a car with a spring spring, all operations are carried out in the same way, while it is necessary to remove the coil spring and shock absorber.