last year i took my sedona for it's first mot, before the warranty ran out. i used my local garage and they gave me an advisory on the near side ball joint . i promptly took it to the main agents and they said all was aok. this is now my second mot and have had new tyres on the front for about 10 months and have noticed that the near side front is wearing on the outer edge. could any one give a reason and cure for this problem. also when i first purchased the car from the main agents , the same tyre was showing the same signs of wear.