So, I had an issue on my car that the passenger window was very slow and got to the point where it needed a push down to get it started on it's journey. The car was in for service at my local MD, and they noted that the mechanism is no longer available from Ferrari, but greased it and said it sort of worked. First time I go to use it, it doesn't. I have a third party warranty that would cover it, and due to the lack of a new part, they were happy to pay for a used item from a reputable parts dealer. So off it went to the MD again. Part was fitted, MD noted it worked, but was slow. First time I've used it, it doesn't work again. Has anyone had the same issue, or any suggestions of other factors? The switch is sending a signal to the window (from passenger or drivers door), but it just doesn't seem to have enough grunt to get going. thanks in advance.