Hi! I have a 2005 9-5 aero. I have heard the braking sensors in the last two weeks and will need to get the pads replaced. What do you recommend for replacements and what is the likelyhood that I will need both front and back, as well as rotors replaced? I called the dealeship yesterday and they want $600 for the front and $700 for the rear! YIKES! Brake Check? Any other recommendations?