Very loud noise when accelerating- sounds like belts

[Jman]

Out of no where x5 started overheating. It had dumped all my coolant. I added water and tried to get home after car had cooled a bit. It continued to overheat so left it and came back a few hours later with coolant. Added and started driving, but all of a sudden the made loud high pitch squealing noise when accelerating. Water pump had broke and was dumping coolant. I assumed that the squealing was just from the wet belts.

Towed car home, ordered new water pump and belts. Goods arrived, and reinstalled all. Added coolant, and let the car idle for some time. It seemed a bit noisier than usual. When I started to accelerate, the same loud squeaking noise is made. Im hoping that this is because the belts got wet from a bit of coolant overflow when adding Zerex G05. Ill check tomorrow, but I get the feeling noise will still be there.

When car had been towed home and I drove into garage, it felt like power steering had gone.

Any suggestions?

Thanks in advance- this site has been great for DIY and helped me with issues along the way of installing the water pump.