System functions
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The following graphic illustrates how the air supply works.
| Item | Explanation |
|---|---|
| 1 | Intake temperature sensor and charging pressure sensor |
| 2 | Charge air cooler |
| 3 | Blow-off valve |
| 4 | Twin-scroll turbocharger |
| 5 | Wastegate valve |
| 6 | Pressure converter |
| 7 | Intake-manifold pressure sensor |
| 8 | Electromotive throttle actuator |
| 9 | Engine |
| 10 | Hot-film air mass meter |
| 11 | Intake silencer |
Descriptions of the following air supply system functions are provided:
- Calculation of air mass
- Charging pressure control
- Idle speed control.