i have got a seicento x reg 899cc,i brought it over a year ago,just after i brought the gear box went so the garage put a new one in so the said,in july this year i took it back as there was a horrible griding noise coming from the gearbox again,the garage said there was something wrong with 5th gear snd the said the fixed it,now the noise is back one garage said it was gearbox and my local garage can hear the noise but told me if any one else had any ideas before they did anything,so help pls