THE LIFE OF A JAGUAR XF 2009 DISCS ARE LESS THAN TWO YEARS. WE SEND IT TO THE JAGUAR SERVICE AND THEY SAID THE MODEL THAT YEAR DIDN'T CAME WITH SENSOR THAT IS WHY THE DISC GETS DAMAGE. THE PROBLEM IS THE CUSTOMER DOESN'T KNOW WHEN THE PADS HAVE TO BE CHANGE BECAUSE IT DOESN'T MAKE THE NOISE TO TELL YOU THE PADS AND THE DISC ARE FAILING. IN OUR CASE THEY CHANGE ARE PADS AND DISC AND IN LESS THAN THREE MONTH THE DISC ARE SCRATCH AND DAMAGE BECAUSE OF THE PADS. VERY IMPORTANT WE HAD TO PAY $800.00 THEY SAID THAT IT IS NOT IN WARRANTY. AND THE PADS TO AND THE CAR ONLY RAN 2,000 MILES. THE SCARY THING IS YOU ARE DRIVING AND YOU DON'T KNOW IF THE PADS AND DISC ARE GOOD OR BAD AND IT CAN OCCUR AN ACCIDENT. *TR