Just finished this job on my 2008 Smart Passion a couple days ago. The correct part is available through Ebay for about $75. But before you go that route consider what is involved. I also scoured Youtube for decent videos of the process without much luck. There was one that covered removing the front fender assembly fairly well. I saw, nothing on the actual fan replacement.
I finally went with this post by Jim:
Noise from front end with AC on
The model fan he suggested (A Hayden fan, model 3700) was too large by a fraction of an inch on my vehicle. So I got the next model down.
Mounting the fan requires a bit of playing around. You can't really get to the other side of the radiator to use the anchor mounts that come with the fan. That's unfortunate, but you can still manage to mount it. Remember, it doesn't matter what it looks like. You wont be able to see anything of the job after it's done. It just needs to work.
You'll have to reach around the old fan to disconnect the power to it. Thread that line forward on the driver's side and splice the new fan's lines to it. At that point, fire it up and make sure you've got the fan going in the right direction. If not, just change the polarity. Also make sure the fan is spinning without hitting anything.
My car is older and I'm just hoping to get a few more years out of it. So far, it works like a charm. Very glad I didn't have to go through removing the old fan or spending a fortune.