By the design of the dell studio 1558 it is hard to get to the fan.
Dell studio 1558 cpu fan replacement.
Part of the tearing down process is removing the laptop s casing in order to get to the motherboard.
Learn how to install and replace the laptop cpu fan on a dell studio 1555 1557 1558 laptop.
It is important that you never use too much force in any step.
Too much force could cause parts to break.
This will take you set by set through the complete installation and replacement process.