Hi, I have a 2000 X reg Seat Arosa 1.4Tdi. Bought her with redundancy money back in January this year (2nd Arosa I've owned). I love her to bits but she has just failed her MOT because the horn wouldn't work. My husband checked the fuses, checked the horn itself and finally took off the steering wheel. Cleaned the slip ring on the back of the wheel boss, cleaned the contactors on the underside of the horn cover, reconnected everything and the horn beeped quite satisfactorily.........until he started to tighten everything back up again!!! Now she refuses to beep at all. Because both of us were made redundant at the same time and are still unemployed, I really can't afford to take her to the Seat dealership and I can't believe that there isn't a simple fix for this. Please, please can anyone suggest a solution? Thanks