Slide/tilt Sunroof: Notes
The F01/F02 has an evolved sliding sunroof system, known as the contour roof.
The contour roof has a larger area of glass than a conventional sliding sunroof system, so it contributes positively to the interior effect and to the feeling of space inside the car.
The headliner panel is electrically operated, and since this means that there is no grip in the panel the impression of interior space is even further enhanced, because the sliding headliner panel now integrates into the interior design of the headliner as a homogeneous surface, underscoring the premium luxury effect.
When we turn our attention to the exterior we, see that the design integration of the glass into the car's skin is effected by the contour curvature of the glass sunroof. At its leading edge, it is oriented in parallel with the leading edge of the roof at the transition to the windscreen, contributing to the harmonic appearance of the car as a whole.
In order to maintain a pleasant level of background noise with the glass sunroof fully open, the contour roof features a speed-dependent combination slipstream deflector.
| Index | Explanation |
|---|---|
| 1 | Contour roof |
| 2 | Standard, slide/tilt sunroof |
The contour roof features an inside-mount slide/tilt sunroof. Glass panel, sliding headliner panel and combination slipstream deflector are all-electric and are operated by a switch set in the roof-functions overhead console (FZD), in line with BMW's usual control and operation logic for the sliding sunroof:
- To open the roof -> Push the switch to the rear
- To close the roof -> Push the switch forward
- Set roof to vent position -> Push the switch up.
The operation and control logic for opening the sliding headliner panel is analogous to that familiar from the BMW panorama-roof configurations. The direction in which the control is moved corresponds to the direction in which the component is to be moved, so this logic is easy for customers to grasp.
To exclude the risk of possible injury, the entire range of movement of the glass roof panel and the sliding headliner panel has a trap release function with a special electronic controller in accordance with international legal requirements.
When the glass sunroof panel and the sliding sunroof panel are both fully closed, the material of which the sliding sunroof panel is made keeps the background noise level on a par with that of a car with normal roof.
The combination slipstream deflector can move to either of 2 possible positions, depending on the speed of the car, positively influencing the aero-acoustics of the car when the glass sunroof panel is fully open. This effectively reduces the annoying low-frequency "blattering" that can occur in the speed range around 70 km/h (43 mph), as well as the high-frequency whine that is typical at speeds around 120 km/h (75 mph).