So far I haven't had any good luck with my G35 I buy the car about a month ago and two days later I rear end some lady, wasn't paying attention, my fault but not the point of this post. So 3 weeks later I get it back from the shop pull up in my driveway and about an hour later i come back out and the windshield is cracked. WTF. The bottom corner chipped and the A/C must have aggregated it on the way home. Couple days later my friends are over and checking out the new whip thats been in the shop practically since the day I got it. Tell me to rev the engine, I do, sounds cool, hits redline, doesn't stop fast enough, pshhhhhh. Some pipe on the radiator blows off the top coolant everywhere. Whatever, looks like it just pops back on. Right? Idk I don't know **** about cars. Anyway I pop it back on, add some coolant, end up going past the max line by accident, all good cause im expecting extra coolant to come out overflow. Next day I'm driving my car and the A/C is hot asf. The temperature looks normal but I've driven the car a total of like 5 days now so what do I know. /rant

Sorry for the rant I guess my question is what might be causing my a/c to not work.
-Going past the redline and blowing that pipe off? (Anybody know what I'm talking about,somebody please know what im talking about its a small 1/4 inch pipe on driver side attached to radiator but theres no clip i just popped it back in?)
-Coolant being over max line? because none came out overflow
-Or delayed reaction from accident because all seemed well after getting it back from shop but maybe small leak?

Any help is appreciated sorry for the wall of text I want to love this car but I haven't had a good day driving it yet

 

probably small leak in the piping or condenser from the accident. the coolant has nothing to do with the a/c cooling

 

Sounds like you need to bleed the air out of the cooling system, there is a bleeder screw located under the hood on the passenger side on the heater hose.
Do a search on here there is a lot of threads on how to bleed the system.

I would also check to see if the a/c system has a leak up front where you crashed. It might not have any freon in it at all.

 

Find a better body shop.