[MercedesOtto]

My w111 220SEB still has a lot of original nice leather pieces left. Unfortunately they are dry and need re-coloring:

Any recommendations on this topic?

1. Do you know of any good dyes for the Mercedes in dark blue? (Currently light blue)
2. How would you recondition the leather to make it soft? (I heard that oil based products should not be used? What is the alternative?)

Thanks,