So this is from a 2017. I recently had a big turbo installed, and since getting it back, it's run fine, but the exhaust note changed noticeably (almost sounded like a slight exhaust leak to me). While driving home from Thanksgiving dinner, I noticed a P0456 code pop up on my accessport. Upon arriving home tonight, I noticed a distinct sewage-y smell, and popped the hood to see fluid pouring out from ... somewhere. After getting my flashlight, I noticed this hose was disconnected, and my coolant reservoir extremely low. Anyone know what this hose is? Should I be worried about starting my car even after it's reconnected? Any insight would be very much appreciated.
