Dry, almost grinding type noise from front wheels / discs area

[Big Dave2]

I have noticed a strange noise on my astra j. The noise sounds like when a brake disc lip may be slightly rubbing / touching the caliper. However, it is not this making the noise. The noise happens all the time. It doesnt change if i brake, turn left or right and it doesnt change with clutch or gear changes. If i push the car when it is off i can still hear it. Possibly from drive shaft area?? Has anyone else had this?

On the edge of the brake pads is what's called a squeal shim. It's an audible warning that the brake pads are getting low and this squeal shim comes into contact with the edge of the brake disc and makes a noise. You need to whip the wheels off and take a very good look at how much meat is remaining on your brake pads. Don't just assume they're ok by looking through the wheel at the outer pads. From experience, it's the ones on the other side of the discs that wear down more than the ones you can see.