AD Blue tank

[Grattik]

Hi all 

Does anyone know where in the 2015+ XF diesel models the DEF tank or AD blue tank is located, I heard a sloshing noise when driving that sounded as if it was under my seat and wondered if it was that.

Can anyone shed some light for me.

Thanks

Dino

[Grattik]

It seems that the noise I can hear is water in one of the back doors, has anyone else had this before. I didn’t have that problem on my old 2014 car. If anyone has can they suggest a reason for it and a fix.

thanks