2. The system includes a separate air pump and a check valve (see photo), the control of which is provided by the processor unit.
6. The pump is checked by the jet pressure at its outlet on a warm engine at 1500 rpm. If the pressure is weak to the touch, replace the pump.
7. The remaining system checks are performed at a car service center, as they require reading diagnostic codes.
Air pump pulley and filter
8. Compress the drive belt and loosen the pulley bolts.
9. Remove the drive belt.
10. Loosen the bolts and remove the pulley.
11. Remove the filter with needle-nose pliers (do not use a screwdriver to pry up the filter!) (see photo).
12. Install the new filter by hand. Do not drive it in even with light blows.
Valve
13. Disconnect the hose from the valve.
14. Unscrew the valve from the socket.
15. The new valve must exactly match the one being replaced.
Air pump
16. Remove the pulley and drive belt from the pump.
17. Loosen the mounting bolts and remove the pump (see photo).
18. Disconnect the hose from the pump.
19. Installation is carried out in reverse order.
Attention! Tighten the pump mounting bolts after installing all parts.