A cover may include a plurality of first fastening mechanisms disposed adjacent to one another along a first edge and a plurality of second fastening mechanisms disposed adjacent to one another along a second edge. The FMEA is indicated with the generation of an FMEA form. If the membrane is produced from a mixture of polyamide-4,6 and about 10 to about 30% by weight polyether amide, the membrane exhibits a surprisingly increased water-vapor permeability. The ultrasonic sensors designed to prevent collision with the forward wall may be used as sensors for compensating an error caused by the gyro-sensor.