My 1993 M5 Touring- Bl01399- came to me with clear indicators. However, I have pictures from it's earlier life in Europe showing amber indicators. Did all M5 Tourings (German market anyway) come with amber indicators from the factory?
As this is a popular 'upgrade'(?) and NOT 'normally and easily' available you should 'exchange'
your clear set against an amber set or offer them for sale.
[Eero H Im 110% sure that tourings never came with clear indicators. But, i might be wrong.]
I am positiv that you are 100 % right.