X5 50i Terrible Grinding Noise & Hot Engine Warning

[macmac80210]

Hi All!

I recently had the turbo coolant lines (including return block) done on my '12 50i. On the hour long drive home from the dealer I got a warning that 'Engine Temperature Hot' and to drive moderately to cool it down.

I drove moderately home, thinking it would clear, and when I got out and turned the car off, I could hear what sounded like either boiling coolant or oil and some pump near the front passenger side whirring and grinding in pulses.

Here's a YouTube video of the noise: https://youtu.be/lwgzqSwg7wA

I'm thinking it's maybe one of the water pumps to the turbos, or maybe the one to the engine, given the location. Before I have it towed back, I'm wondering if anyone has some insight or has experienced something similar!