1. Disconnect the wire from the terminal «minus» battery.
2. Using a screwdriver, pull out the core of the piston for fastening the left side of the floor tunnel lining...
3.... and remove the piston.
4. Remove the left side of the floor tunnel lining, overcoming the force of the clamps.
5. Pull up the air duct for the air supply to the legs of the left rear passenger and, having shifted from the nozzles, remove it.
6. Pry off the edge of the right side of the floor tunnel lining...
7.... and remove the sidewall, overcoming the force of the clamps.
8. Pull up the air duct for supplying air to the legs of the right rear passenger and, having shifted from the branch pipes, remove it.
9. Slide back the lock of the retainer of the front block of the wiring harness of the electronic unit.
10. Press the latch...
11.... and move the block lock bracket back to the stop.
12. Disconnect block from the block.
13. Similarly, disconnect the rear block from the block.
14. Unscrew the two nuts securing the block to the base of the body on the left side...
15.... and one nut on the right side.
16. Remove the block.
17. Establish the block of management of system of passive safety upside-down. There is no arrow on the label of the unit showing the direction of its installation, because due to the asymmetric shape, the unit can only be installed in one position.