The only way is to adjust your driving style. Couple of things you can try. 1. Drive in 1st or 2nd gear at speed breakers and potholes. 2. At speed breakers free the brake at about couple of feet or so from them, and the suspension action enures that the under body doesnt scrape. You have to practise it to get used to it though. Have you ever been to concorde motors? I had some rattling issues in the first month. That was from the front left door. I got that fixed at Concorde and it never came back again. As for the seat belt locks and clips, the best way I think is to ensure that none of the pieces are left hanging behind the seats. SA s say "spare wheel in FIATs is just spare wheel and is only used in case emergency. Wheel rotation is fron to back and should not be cross" When we get a service station near our house or office we all tend to go there to get the work done. But once you identify a good service center it's better to deal with them. A lesson learnt the hard way.