Well another investigation by torchlight in dark garage proved you spot on Jon. I had to check with finger though as fluid so clear. This is what I mistook for empty reservoir although fluid is on fill mark just above mounting band. Reservoir is same colour even at top, it's flash that makes it look paler.
Apologies for the drama
On another note having just completed full clean and polish of wire wheels and painting of hubs, I found the nearside front brake hose had been touching the brake reaction stay.
Paint was worn away on stay although no damage to steel braiding of hose ..... yet!
Have bent hose away but loath to use tie wrap as it needs to be flexible. Obviously will contact dealer but anyone else come across this?
