@Xulfiqar if you would remember this post you replied that i should check for cupping on tyres and wheel spindle with stethoscope for bearings, i finally found time and checked all tyres thoroughly with stethscope and although sound from 3 tires was very loud and from one wheel intermittent. i found that if i move the scope to the brake calliper sound increases and is louder on calliper than listening at wheel spindle, so it must be binding brakes?
if you see the quoted post the problem appeared just after brake service so the brakes must have been adjusted wrong and are scraping the disk causing noise? although i mentioned before that the rim and adjacent area doesnt get hot but now after few km i can feel the area hotter than normal as well as the disk dont look as smooth as before.
how can i confirm whether brakes have been adjusted incorrectly? what do they even do in brake adjustment, tighten calliper or pads too much to cause noise? its present on all 4 wheels and on one wheel less so.
