Thanks everyone for the info.
My car is a 2006 build.
One small bore tube has no markings.
The other small bore tube is marked …..W=FUEL HOSE BSAU108/2 L4/C4/R SUITABLE FOR UNLEADED FUEL 5/16”
Seems this hose is good for 100 degrees C.
After nineteen years hoses still seem good but I’ll upgrade when I service at years end.
Thanks again.