Porsche Cayman right intake fan?

[Declan-M]

Hi, wondering if anyone can help me. On the right hand side intake of the Cayman (2.7, 2007) there is a fan inside. It does not seem to be turning when engine is on at all, I’ve tried aircon on and off Incase it was Ac Related. Can anyone tell me what the fan is actually used for ? , does it provide extra engine cooling when driving ?
Thanks in advance !

Edited by Declan-M on Thursday 19th April 19:38

[Declan-M]

Thanks !!