My 07 SWB 460 has 4200 new miles on her since I purchased a few months ago (total of 37k now). I drive 95% highway and was assured the brakes were replaced when I purchased in January. Anyway, I'm hearing an annoying metal on metal noise that seems to originate from the wheel area and I have to assume is the brake sensor notifier. It's a bit louder than the one on my Acura TL, so I'm not completely sold that it's the brakes (or maybe it is)...

Has anyone else run their brakes to the sensor and if so, did you experience a similar loud sound (especially with window down)? Any other suggestions?

I have requested the full once over for my first service (the free CPO one) on Monday. I am of the mindset to demand free diagnosis and replacement as this is supposed to be covered under CPO refreshment of the vehicle. I would be appalled if they claimed brakes could be worn to the sensor in 3 months and 4200 miles. Thoughts? Suggestions?

 

i sometime hear a long "beeb" sound coming from front wheels area whilr driving on a fixed speed on highway. It goes away when just applying slight pressure tp the brake pedal. It is even non-noticeable .. I hear this sound perior to the need of replacing the front brake pads. I dont wait for the sensor to be torn So i dont have to replace the sensor

 

I don't know if it's the sensor but I have heard a very loud metal scraping sound coming from what I think are my brakes. I asked my SA to have it checked out when I was in for my last service and everything checked out ok my brake pads are at 95%

 

there is brake click noise TSB....don't know if it's applicable in your case though...

 

Thanks everyone! More to come...

 

The caliper design is capable of holding small pebbles that can cause this noise. That was the caper in this case. They removed the pebble and I'm back in business.