I know your pain. I haven't even made my first payment, and already I regret my purchase, because of the top. My dealer took it through their car wash and already caused some minor fraying along the seam at the back. They also managed to put some lot rash on it, which was only revealed after a detailing took off the hiding glaze they use to cover their f*** ups.
You can never take this car through any kind of car wash. Ever. The soaps will embed in the top and attract dirt. They will also deteriorate the stitching and fabric. Hand wash the car with soft top safe soap only, Spray off with a garden hose.
You can vacuum with a furniture fabric attachment, but I would only do that if noticeably dirty. You can also blow dust off. Very light touch here.
To wash, you must wet it first, then apply special soap. Use a horse hair brush with gentle strokes. Rise off with hose, not high pressure car wash, until no more soap appears.
Pat dry with Chamois, never rub it. When completely bone dry, mask off the rest of your car, and apply the spray with even strokes.
You only need do the sealant once or twice a year. I would only do the full wash if the top appears to need it. Other wise, just lightly vacuum or rinse it off.
I had a detailer do an initial wash & seal to get me started. They did a great job, masked the car, and nothing got on my paint. Or they effectively cleaned it off.
I got the leather too. :bang: As if I didn't have enough to do now. If I could get out of it, I would, but I've made my bed. Probably trade it as soon as I can. I'll try not to think too much about it, and enjoy it as much as I can in the meantime.
Minis are definitely better cars, and I can see myself in one in a few years. Fiat will be laughed back to Italy by then. Chryslers abominable service after the sale will see to that. They don't really seem to even know anything about the cars, or how to take care of them. And next year, Fiat will be raising their prices. Mini will crush them if they do that.
I did my deal to escape an unreliable 2012 VW Golf, but I didn't put enough thought into the situation I was jumping into, and now it's worse. At least I got payoff for my VW, and I got 0% interest on the Fiat, so every dime goes to pay it off. It's my only consolation.
And you can saturate it without damaging it, but I wouldn't leave it to dry from soaking wet. Pat it dry. And the soap needs to be put on after soaking the top, not dry.
This will be helpful: Mike Phillips demonstrates how to properly protect your canvas or vinyl convertible top. - Search on YouTube for video.