⚙️ What’s inside BMW electric water pump and why it always fail ? 2E81 2E84 2E82 code

In this video I’m going to take apart famously known BMW electric water pump to find out why it always fails. Many people says it fails because of the coolant gets inside and causes electrical shortage and fatal failure but as it turned out it’s not always the case. I WILL BE GRATEFUL FOR COMMENTS BELOW IF ANYONE COULD CONTRIBUTE WITH THEIR EXPERIENCES WHY ELSE IT FAILS.