Air supply (Ver. 1): Notes
WARNING: This page does not describe the selected car, but rather 45 other vehicles, including the 2016 BMW M5, 2016 BMW 550i xDrive, 2016 BMW 550i, 2016 BMW 535i xDrive, and 2016 BMW 535i. However, it is still accessible from the selected car via links, so may be relevant.
The N55 is a BMW TwinPower Turbo engine featuring dual forced induction. Engine N55 features 1 twin-scroll exhaust turbocharger which is driven by 2 exhaust ports (dual turbocharging).
| Item | Explanation |
|---|---|
| A | Unfiltered air |
| B | Clean air |
| C | Heated charge air |
| D | Cooled charge air |
| 1 | Unfiltered air line |
| 2 | Intake silencer with intake filter |
| 3 | Hot-film air mass meter |
| 4 | Crankcase ventilation |
| 5 | Twin-scroll turbocharger |
| 6 | Charge air cooler |
| 7 | Intake air temperature pressure sensor |
| 8 | Fuel tank ventilation shutoff valve (to 03/2012) |
NOTE:
US version:
Heavy vehicles with automatic transmissions or all-wheel drive vehicles have a second supply point (= second purge air line) from the tank vent valve via the suction jet pump (= Venturi nozzle) in front of the compressor.
Until 03/2012, a shutoff valve is installed for the diagnosis (= Continental high pressure pump)
From 03/2012, a pressure sensor is installed for the suction jet pump for the diagnosis (= Bosch high pressure pump)
Heavy vehicles with automatic transmissions or all-wheel drive vehicles have a second supply point (= second purge air line) from the tank vent valve via the suction jet pump (= Venturi nozzle) in front of the compressor.
Until 03/2012, a shutoff valve is installed for the diagnosis (= Continental high pressure pump)
From 03/2012, a pressure sensor is installed for the suction jet pump for the diagnosis (= Bosch high pressure pump)
European version:
These vehicles also have the 2nd purge air line. However, it will not be diagnosed. Neither a shutoff valve nor a pressure sensor is installed for the Venturi nozzle.