Some vehicles may exhibit a knocking / squeaking noise from the front shock absorber when driving on rough roads and/or when turning the steering wheel while the vehicle is stopped. The noise may be due to: Upper front strut bearing (A) damage. (CX-5 and Mazda6). Squeak type noise between the front strut bearing and coil spring. (CX-3, CX-5 and Mazda6). The bump stopper (C) may be contacting the strut bearing when the front shock absorber is compressed, causing a popping noise. (Mazda6 only). The front lower arm bushing (D) is making a creak type noise in wet road conditions. (CX-5 and Mazda6).