Waterpump not working

[N4Nick]

Hello everyone,
So i replaced my waterpump and thermostat after getting a waterpump code and overheating on the highway which caused me to push it back home. I am still getting the waterpump code, the car overheats, and when I tried to start the coolant bleeding process nothing happened, I checked all 3 fuses( 2 in the fuse box and one near the ecu) and they all came up good. I did noticed some coolant in the connection of the waterpump so i dried it up and plugged it back together properly. My suspicions are the voltage regulator or the fuse box ontop of the battery, I am also considering the IBS has gone bad because I am getting a code but the car starts. When the car starts it takes a few seconds to crank over and then the electronics inside the cabin take like 30 seconds to come on and I feel like these issues are caused by the same problem. My question is what should I look at/ replace first?

Thank you.

[vreihen16]

This question should be asked in the appropriate forum section for your car's model, and not the forum software support section.....

[N4Nick]

my bad

[cmyx6go]

What vreihen16 meant to say was Welcome to Bimmerpost, Newbie. You'll get better results if you post in the correct forum for you car and model year which is found here.
https://g20.bimmerpost.com/forums/index.php
https://f30.bimmerpost.com/forums/index.php
https://www.e90post.com/forums/index.php

He sounds cranky sometimes but he is a good guy.