picked up the new car yesterday (2005 astra 1.8 petrol) but when i got home the brakes ( i think) started humming really loudley, if i press the brake it goes???? car only covered 12,000 miles and collected from a garage so wondered what this can be? they are a hour away from me so would rather not go all the way back.
i was thinking bearing or brakes. what you all think?