Hello. I have a Ford Fiesta 2003 1.4 TDCI with Durashift transmission. Recently he makes a funny noise at about 20-30 km/h. Sounds like a deep howl. Like if something would grind. And at 50-60 km/h it sounds like a wheel bearing is defective. From 60 the noise is gone. Can anyone tell me what that could be ?? Mfg