I would like to order, then fit, front Brake Discs and Pads to my vehicle. I notice from various websites that there seems to be 2 sizes of discs and 3 sizes of pads. Is there any way of telling which option is the correct one without taking a front wheel off the car, removing the pads and measuring the discs/pads? Do the Chassis Number and Engine Code offer any clue?

Thanks for any assistance that you are able to give me!