Thank you for the advice

Congrats. Good step in the right direction. We all hope everything works out fine.

Now we have to get you into DIY more...

Thank you again everybody for all of your help!

I don't want to talk to soon but I picked it up and all seems well. They replaced the aux fan, condenser and drier. I drove it about 40 miles after picking it up and no overheat, no check engine light and ice cold air! Thank you everyone for all of your suggestions and advice! You are absolutely right I definitely need to get into more diy. It's expensive to fix these cars but they truly are a pleasure to drive. This is my 3rd bmw but first x5 and I love to drive everyone of them!

Update: I drove it for a little while yesterday and the service engine soon light came on. I called the mechanic and it's set to go in on Tuesday. I got in it today and started it up to run down the street and the service engine soon light wasn't on anymore. Is it normal for the light to go on then turn off? If so what can cause that?

Get yourself a scanner and do some of these work yourself or you are going to regret the day you brought that BM Trouble U.

A misfire will turn on the light after x number of misfires had occurred in the cylinder. Turning off the engine just reset the counter for the misfire and the light will go off until the number of misfires has ocurred again.

If you are an Android person and didn't drink the Apple Cider, you can down load a free app Torque.

Or you can purchase Carly BMW which I've used with good results. It's $55 I think but was worth it for me. Torque is a good option as well.

I am an android user. The last time the light came on there was a code for misfire low fuel (I believe that's what it said) but it has never ran with low fuel. Could that mean something? Also what would cause a misfire if that's what it is? I'll look into Carly BMW. THANK YOU!

Any time the computer see a variation in speed after a cylinder fires, it count that as a misfire. The computer keeps track of all the misfires in each cylinder and when the misfires exceed a certain limit it throws up an SES light.

A misfire could be from a bad spark plug to low compression in a cylinder to a burnt valve, to a clogged injector or a dead injector.

Thank you upallnight. How can I narrow the problem down?