Radiator fan noise

For a factory replacement you will need to use either a dealer or more likely a salvage yard to get a fan.
That car was never sold in the US so our service information is limited. However, most of the fans are not held in the vehicle with much. Normally there will be a couple tabs or clips at the bottom and two to four screws on top. Then an electrical connector. Remove the screws/bolts, tip the fan back and pull up.
Sourcing the replacement might be the hardest part. You say yours is noisy? How? Squealing, rattling?
In cases where a new motor like this is hard to find or very expensive I have taken them apart and oiled the internal bearings but that is a last resort repair.