I know the S4 had two different kinds of air conditioning ( AC ) compressors models, so if you wanted to replace it you had to get the same kind or the mounting bracket with it if it was the other brand.

Did the S5 also come with two different brands of AC compressors or just one?

AC is already out of my car and the engine is being pulled soon so I figured I'd get a new (from the forums) one now and just put it in while the engine is out and all.

 

Download the Heating and Airconditoning section of the FSM.

 

Mounts are the same between the two, the hose hookups are different. So if you buy a used compressor, buy the hoses with it. Just the hoses from compressor to the connector to the hardlines in the car.