Strange buzzing in engine bay

[PaulR83]

Hi,
when I haven't used the van for a few days and I unlock it or open the door each time there is a loudish buzzing from low in the engine bay. sounds really strange and very high pitch.
is this something priming. It keeps doing if when going in and out the van, but goes ones started.
engine is a T6.1 199 BiTurbo DSG.
thanks

 

[Robert]

Maybe same thing?

What's that clicking/knocking?

Weird one. We spent the night in the van in Wales. As someone who usually has to wear earplugs to sleep, I notice every little noise when I don't. However this time, even my wife noticed. It was a small knock, like someone lightly tapping Thier finger on the bonnet. It was regular and...

www.t6forum.com

 

[PaulR83]

Thanks. Sounds similar to what Pauly says then. They just make random noises when not used. Strange. Sounds like something is shorting. Very high pitched.

 

[Skyliner33]

My van always makes a loud clunk when i open the front door to my house.

 

[Loz]

I get the same, I think it's one of the many water circulating pumps.

 

[PaulR83]

Cool, thanks for that! Normal then