When your car isn't fully fixed after an auto accident

Well, I'm about to embark on a journey that I don't have any experience with. So, let's learn a valuable auto insurance lesson together.
At the end of last year my car got hit by a young lady. She somehow managed to cross in front of me while I was stopped and remove 60 percent of my front bumper. The damage seemed minor enough. The side panels were fine. The door gaps didn't get impacted from the auto accident. Basically she just sheered off that part of the bumper. What I thought would be a few hundred dollar accident turned into a eleven thousand dollar accident. Yup, 60 percent of a bumper equaled half the value of my car. 
Apparently, when a car gets hit and any part of the car gets a scratch that scratched part needs to be replaced. And, on my car that meant the whole bracket that holds the engine in place had to be replaced. The main steel beam that protects you in an accident also had a scratch and had to be replaced.  I had about 9000 in parts that were replaced. Most of which I thought could be fixed on the cheap but who am I to tell the auto insurance company to please just weld it back together when I am not paying. I'd rather have a new part for the price of free than a welded part.
After I got the car back the first time it made a clunky sound when I went over a bump. It seemed like something wasn't tightened properly. And the fan on my car would come on and stay on even when the car was turned off and cool. 
I managed to get the clunky sound fixed but the fan wouldn't replicate the staying on thing. A few months back it came back on. Then I unplugged the fan and let the car sit for a day and it went off again. Now, it's back on. 
My plan is to take the car back to the body shop that happens to be attached to the dealership and have them try and fix it. So, as much as you hope that your car gets fixed the first time things do happen and sometimes they have to go back again. It will be interesting to see how they handle things. 
Stay tuned for what they say once I bring it back in.