A sensor assembly for a vehicle windshield includes a retaining frame, a sensor housing, clamping hooks, a spring, and an actuating lever. The retaining frame is attachable to the windshield. The clamping hooks are connected to the housing. The clamping hooks are attachable to the retaining frame to attach the housing to the retaining frame. The spring is connected to the housing and associated with one of the clamping hooks. The actuating lever is pivotably mounted to the clamping hooks. Pivoting of the actuating lever causes the spring to compress and press the housing against the windshield when both the retaining frame is attached to the windshield and the housing is attached by the clamping hooks to the retaining frame.