Please check this short clip, the first part you can hear the normal diesel chug and very faintly for those with sharp hearing a swish swish noise. This swish noise is what I wonder about, it's easier to pick out after I move to the side. The noise is most noticeable when the engine is warm.
Is it normal or something I should get looked at, car has only covered 10k miles, the last 600 by me over my first month of ownership.
I have just washed the car but the sun came out before I could dry it properly so sorry for the water staining.