MacBook Pro fans are deafd

Hi all.
After some unexpected shutdowns, I discovered that my MacBook Pro fans are both dead. iStat Pro shows them always at 0rpm and after some hardware testing with Tiger DVD I get the error code that fans are broken.
When MacBook Pro gets too hot it just shuts down so I wanted to repair it but I'd like to know an aproximate cost. Apple shops here in Barcelona (Spain) say they first want to ckech the laptop out (paying, of course) but i don't know if two broken fans can imply a motherboard change or whatever that can be expensive or worth it.
Any idea of an aproximate cost?
Thanks.
R.-

You should have it checked out by an authorized service provider to make sure nothing else is wrong. Better to be safe than sorry.

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