Fumes coming from filler cap

[PeteL]

Has anyone else noticed this. Just recently I’ve noticed blue(ish) coloured fumes coming out of the diesel filler cap when I go to fill up. I wouldn’t think that there is a problem but I’ve had diesels for the last 15 years and never noticed it until I bought my XF. Any comments greatly appreciated.

[O.T.H]

Hi --Could be the tank breather not working 100% not sure if its in the cap ???

 

 

[PeteL]

Update, it only happens when I’m putting diesel into the tank 

[Loofah]

Mine does this too although only picked the car up yesterday so can’t say if it’s repeatable issue...

[PeteL]

Thanks Loofah, good to know it maybe something that’s acceptable 

[Loofah]

Just wondering - was your tank nearly empty on refilling (mine was)? Could just be excess vapour

[PeteL]

Hi Loofah, I’ve had it on a few occasions with varying amounts of fuel in