问：在低速行驶时，从汽车的正面磨削/刮擦噪音。

如果外国物质（例如，道路碎片）卡住的方式，你可能一直听到噪音。噪声可能是由于制动衬块（特别是如果它们不是OEM焊盘）。Non-OEM pads sometimes have chunks of metal in them and if the caliper is sticky, at take-off (i.e., while still at low speed) the pad may be rubbing against the rotor until you get to a high enough speed that the pad finally retracts. It is also possible that the brake dust cover is contacting the rotor, because it was impacted and bent, but the noise should be present all the time if that is the case. Really, the first thing to examine is the brake assembly (pads, caliper, pins in torque plate, rotor, dust cover) on the right side. If the source of the noise is not found there, obviously another rotating component is responsible and that means stuff like axles and the transmission. Be sure it is really wheel related, though. It is possible for accessory drives and pulleys to make noises, too, and such could disappear at higher RPM, just as you are describing. In any event, inasmuch as the noise is so obvious, the origin would be quickly identified during an actual, on site噪音诊断。这样可以在您的方便并在您所在地点进行。万博体育入口如果您有其他问题或疑虑，请告诉我们。