This mixer is the last. The first went to the 3.Gebrauch over in loud whistle. The replacement gave a little longer, but not more of this work. We have at the same time 5 Bosch MFQ 5320 in service, currently twice as often. With these no problems. Result: money for MFQ 4030 we have thrown out the window as broken and we have no nerve to ask again to spare.