Air supply (Ver.2): Notes
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
The engine in the Alpina version differs to the BMW AG engine in the following ways:
- 2 exhaust turbochargers
- 2 vacuum-actuated wastegate valves
- 2 catalytic converters and 4 oxygen sensors in the twin-pipe exhaust system
- 2 electrical blow-off valves
| Item | Explanation |
|---|---|
| 1 | Electropneumatic pressure converter (for adjusting the bypass valve on the exhaust turbocharger for cylinders 4 to 6), activated by the DME |
| 2 | Electropneumatic pressure converter (for adjusting the bypass valve on the exhaust turbocharger for cylinders 1 to 3), activated by the DME |
| 3 | Engine ventilation heating |
| 4 | Intake-manifold pressure sensor |
| 5 | Intake air temperature sensor |
| 6 | Electromotive throttle actuator |
| 7 | Electrical blow-off valve |
| 8 | Intake silencer |
| 9 | Charging pressure sensor |
| 10 | Engine |
| 11 | Bypass valves (wastegate valves) |
| 12 | Charge air cooler |
| 13 | Exhaust turbocharger |
| 14 | Non-return valve with pressure limitation (for engine ventilation in the inlet ports) |
| 15 | Non-return valve to the fresh air pipe (for engine ventilation) |