Do you have servo steering? I know little about cars myself but the hint with the steering wheel could mean that it's the pump of the servo steering.
Depends if its really loud so you can hear it from far away it could also be the V-Belt rather than the timing belt. The later would probably very expensive to fix.
Depends if its really loud so you can hear it from far away it could also be the V-Belt rather than the timing belt. The later would probably very expensive to fix.