On VAZ-21083, 2109, 21093 cars, the rear seat may differ only in the shape of the cushion and back padding.
To increase the area of the luggage compartment of all the cars under consideration, the rear seat folds down, for this purpose the cushion and backrest are attached to the body with hinges. The movable links of the hinges are welded to the bases of the cushion and backrest; each of the fixed hinges is bolted to the body. The cushion hinges are covered with plastic covers. The seat back also has a plastic panel at the back, which is covered with a black carpet, common with the luggage compartment carpet. The carpet is made of lightweight non-woven material with a polyethylene base.
In the normal position, the cushion and the seat back are fixed with locks. The cushion lock consists of a retainer welded to the body floor under the cushion, a lock housing, and a latch with a drive. The housing is welded to the base of the cushion, and a spring-loaded latch is installed on its housing on the axis, which engages with the retainer. To raise the cushion, it is necessary to pull the nylon tape of the lock drive, connected to the latch, and remove the latch from engagement with the retainer. When lowering the cushion, the latch is automatically locked by the retainer.
The seat back locks are attached to the base with screws. Each lock housing contains a spring-loaded tongue, which is pressed into the groove of the lock, fixed to the body frame. To reduce noise, the end of the tongue is covered with plastic. A rod with a fixing plastic holder is connected to the other end of the tongue through a hole. The rods of the right and left locks are connected to a common lever of the locks of their drive. The lever is installed on the axis of the housing, which is attached to the base of the back with two screws.
When the lever is turned to the left, the right and left rods move the tongues away, releasing the locks, after which the seat back can be laid in place of the cushion, thereby increasing the area of the luggage compartment. When the back is raised to the normal position, it is automatically locked with locks.
The text is copied from the online portal: www.vazbook.ru
On VAZ-2109 and 21093 cars, when folding the rear seat, so that the rear door armrests do not interfere, they must be open.