Functional description
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 charging pressure is regulated by the engine control via a wastegate valve. The wastegate valve is adjusted pneumatically by a diaphragm box. An pressure converter applies a partial vacuum to the diaphragm box.
The engine control activates the pressure converter by means of a pulse-width modulated signal. This sets a corresponding partial vacuum at the pressure converter, and this determined the opening angle of the wastegate valve.
| Index | Explanation |
|---|---|
| 1 | Exhaust turbocharger for bank 2 |
| 2 | Vacuum reservoir |
| 3 | Vacuum unit |
| 4 | two-pin plug connection |
| 5 | Pressure converter, wastegate valve 2 |