Can anyone tell me where the oil suction port is for the engine? I need to siphon off a slight overfill and don't want to remove the sump plug.

I have a Pela siphon, but need to know where to stick it!

I think It's just next to the oil filler cap. Small black cap with a circular arrow on it. (Assuming that's what it is for in any case.) the cap twists off and pulls up.

There is no sump plug, but there is a push on hose at the bottom of the sump, which can be pulled off slowly to release a little oil. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6

There is what looks like a dipstick tube front left with a black twist top

That said, I’m not sure a Pela siphon will fit down it

The tube is very thin!

Looks like it's designed to have a connector pushed on the top and the tube itself acts as the siphon pipe. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
Fiat 500x 1.4 multiair Lounge 2015
2010 LR D4 Commercial 2.7 TDV6

Never seen the JLR system I’m afraid...

Thanks all, found it. That is indeed a very thin tube!

Does your Siphon tube fit?

Nope! However problem solved here; I turned the car around because it was on a slight slope and problem solved!

The siphon tube is a similar diameter to the Pela tube, so I think that I could have adapted the end of the Pela with a tube sleeve slid over the end and sealed, and then placed over the engine siphon tube.