volvo

Hi, would anyone know what the black tube hanging from the rear driver side of my car is (Volvo XC40 Petrol 2018). Opposite side to exhaust but same side as fuel cap. I can’t see where the loose end would have connected to. The third picture which shows the other end is still clipped in place...

I recently bought a 2005 1.8 Volvo S40. When I was buying the car everything seemed to be fine. The car has done 87,000 miles. When I got the car home I was driving it about for a bit I reved the car and noticed a plume of smoke, it was unclear whether it is blue or white. It was a cold enough...