Hi everyone. After much looking I have bought a 2004 2.0td4 with v low mileage and full warranty etc. on taking delivery, I have noticed a bit of road noise from front right side and going to take it to garage for looking at but having done some research, could it be tyres? I have two nearly new Michelin synchro ex on front and one on rear. The fourth is a little more worn Bridgestone on rear passenger side? Any thoughts greatly appreciated before I go back to my garage. Many thanks.