Oil contro light burns after warm running in stand at Mini One 1.6 90Ps

Hello together, I hope here someone can help me. Have with my Mini One from 2002 is some time the problem that after starting, when the engine has become a bit warm the red control light lights up. As soon as a little gas gives the speed a little over 1000 revolution the lamp is immediately turned off,The engine is smelling as always without problems,During the ride this also always stays out As soon as you become slow the red control light is again on The Östand is ok. True already with BMW a ussage of the master Have never been abbot before. If there is perhaps a known problem, or if someone has had it before, the dare has run 105 Tkm first. Knows much about the problem and someone appreciates the solution Binn for every answer.