looks straight forward now the tab/indicator research has been carried out by other unfortunates!
How much are BWM likely to relieve me of for 4 clear lenses?
Tom
Nippy does them, or for about the same amount www.alternatives.com if you want to get an exciting parcel from Vegas! Bulbs come with the latters. Worked out about £20. Think they are a £25ish option on new bikes. I must say though the tabs break easily, one of mine was broken on delivery and is being replaced.
Also I'd recommend the silvered bulbs. The lenses have a large clear area so still look quite orange.