Abstract: The invention relates to an assembly (5) for a motor vehicle (1) with an ultrasonic sensor (5a) that is designed for concealed installation at a cladding part (15) of the motor vehicle (1), and that comprises a membrane (13) capable of oscillation for transmitting and/or receiving ultrasonic signals (8), wherein ultrasonic signals (8) can be transferred by means of the membrane (13) to the cladding part (15), and with a damping element (17) that is arranged around a longitudinal axis (L) of the membrane (13) and around the ultrasonic sensor (5a), wherein at least the membrane (13) extends through a cutout (31) of the damping element (17), wherein oscillations of the cladding part (15) can be attenuated by means of the damping element (17) when in the installed state, wherein the damping element (17) comprises reinforcing elements (25). The invention further relates to a device with an assembly.

Abstract: The invention relates to a sensor arrangement (3) for detecting a state of a road (11), with a sensor device (9) which is designed to detect an impact of water (12) on a wheel arch lining (13) of a motor vehicle (1) while the motor vehicle (1) is travelling on the road (11), and with a control device (7) for detecting the state of the road (11) on the basis of the impact of the water (12) detected by means of the sensor device (9), wherein the sensor device (9) has a first and a second ultrasound sensor (4, 5) which are designed in each case to receive an ultrasound signal and which are furthermore designed in each case to detect the impact of the water (12) on the wheel arch lining (13), wherein the first and the second ultrasound sensor (4, 5) are arranged apart from one another on or in the wheel arch lining (13).

Abstract: The invention relates to a sensor arrangement (3) for detecting a state of a road (11), with a sensor device (9) which is designed to detect an impact of water (12) on a wheel arch lining (13) of a motor vehicle (1) while the motor vehicle (1) is travelling on the road (11), and with a control device (7) for detecting the state of the road (11) on the basis of the impact of the water (12) detected by means of the sensor device (9), wherein the sensor device (9) has a first and a second ultrasound sensor (4, 5) which are designed in each case to receive an ultrasound signal and which are furthermore designed in each case to detect the impact of the water (12) on the wheel arch lining (13), wherein the first and the second ultrasound sensor (4, 5) are arranged apart from one another on or in the wheel arch lining (13).