Note. The vacuum connections for the vacuum pump on the solenoid valves are marked with a "YELLOW" ring or with the designation "VAC" on the solenoid valves.
| 1 | for heater valve vacuum unit |
|---|
| 2 | Vacuum pump |
| 3 | Switchover valves vacuum unit |
| 4 | Exhaust gas recirculation solenoid valve |
| 5 | Exhaust gas recirculation valve |
| 6 | Switchover valves solenoid valve |
Engine Compartment Vacuum Routing, Y 22 Dth (Continued)
| 7 | Charge pressure control solenoid valve |
|---|
| 8 | Vacuum unit for turbine wheel adjuster |
| 9 | Vacuum vessel |
| 10 | Vacuum vessel solenoid valve |
| 11 | Vacuum reservoir |
