Almost.

I moved your post back to your own thread for this game.
What problem are you having with the brushes? Here's what needs to be done to trigger the conversation with Manuel:
- Look close at the standing fan.
- Open the cover of the fan. Turn the switch on and off.
- Take the fan brushes.
Right click the fan brushes in inventory. It is worn out.
- Pull back and take the pillow from the floor.
- Talk to Ines about repair. Exit the area.
- Talk to Manuel and get engine brushes.
Replay the scene in that order, making sure to right click on the original brushes in your inventory, and you should get through.