Abstract: A method is proposed for manufacturing and testing of complex products, in particular motor vehicles in series production, wherein all the data for the individual manufacturing stations in the manufacturing line is stored in a central computer. In this case, different models are manufactured on the manufacturing line, such that the correspondingly configured data is provided at each manufacturing and test station for this model, after identification of the model. A technical test is carried out in conjunction with the manufacturing installation by monitoring the vehicle functions or else the equipment for their function. An attributive test is carried out by the worker at the manufacturing stations, with all the recorded test data being supplied to the central computer for central evaluation, and with the data being stored on the basis of individual categories in the central computer, such that it is possible to evaluate the manufacturing process with respect to the individual manufacturing steps.

Abstract: A method is used for checking the air noise of a motor vehicle, particularly of a passenger car, which air noise is generated by air flowing onto an outer skin of a vehicle body of the passenger car. In order to optimize this method, targeted air currents are applied by means of a blower to a stationary passenger car in areas where sealing devices extend between stationary vehicle body structures and movable vehicle body elements of the vehicle body, and the air noise occurring as a result of the air currents is measured subjectively and/or objectively. For the implementation of the method, a device is used in the case of which the blower comprising the outflow cross-section is a component of a flow device which is equipped with a blast nozzle for acting upon measuring points on the outer skin.

Abstract: A method is used for checking the air noise of a motor vehicle, particularly of a passenger car, which air noise is generated by air flowing onto an outer skin of a vehicle body of the passenger car. In order to optimize this method, targeted air currents are applied by means of a blower to a stationary passenger car in areas where sealing devices extend between stationary vehicle body structures and movable vehicle body elements of the vehicle body, and the air noise occurring as a result of the air currents is measured subjectively and/or objectively. For the implementation of the method, a device is used in the case of which the blower comprising the outflow cross-section is a component of a flow device which is equipped with a blast nozzle for acting upon measuring points on the outer skin.