Functional description
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 control system continuously calculates the required cooling. The engine control system only opens the radiator shutter when a higher level of cooling air is actually required.
While the vehicle is being driven, the closed radiator shutter reduces the warm-up phase of the engine, as operating temperature is reached more quickly if the environment is better encapsulated. The air flow through the radiator creates high aerodynamic drag as the driving speed increases. In higher road speed ranges, the closed radiator shutter improves the aerodynamics. This reduces fuel consumption and thus the emission level during driving with the combustion engine.
| Item | Explanation |
|---|---|
| 1 | Air flaps |
| 2 | Radiator blind drive |
| 3 | 4-pin plug connection |