Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Air Injection Control Valve: Testing and Inspection

- Disconnect pressure hose from AIR Inlet Valve.
- Disconnect vacuum hose from AIR Solenoid Valve (N112).

- Connect VAG 1390 hand vacuum pump to disconnected vacuum hose -1- and AIR Inlet Valve.

CAUTION!: Do not use compressed air during this check.

- Connect auxiliary hose to connection -2-, in place of pressure hose, and blow into it.
- AIR Inlet Valve must be closed
- Operate hand vacuum pump.
- AIR Inlet Valve must open