Audi Q7 Hissing / bubbling noise passenger foot well area

[Simonpyle]

Hi
Wonder if anyone can help ?
I have a AudiQ7 2010 3.0 Sline
Past couple of days I have started hearing a hissing / bubbling noise from around the passenger foot well or behind glove box. This can be heard when the car is running and continues for around 30 seconds when the engine is switched off.
Anyone have any ideas what it maybe ?

Thanks

 

[Nilz]

Have you had any water leak into the car, do you have any condensation on the windows at all, have you checked the floor on that side to see if its wet at all?

 

[Simonpyle]

Have you had any water leak into the car, do you have any condensation on the windows at all, have you checked the floor on that side to see if its wet at all?

Thanks Nilz.

Just checked it. None at all it is bone dry.

 

[Nilz]

OK, from what I have seen on the net, it could just be your air con, I assume you may have started using it again now that the weather is sort of warming up a bit now?

 

[Simonpyle]

OK, from what I have seen on the net, it could just be your air con, I assume you may have started using it again now that the weather is sort of warming up a bit now?

Cheers Nilz
Will get it looked at, as I am lost.
Thanks