I would change it for sure. I've had 3 e38s (same transmission) and always had good results. It's those that wait until they have issues with shifting that suffer in the end usually. I use valvoline maxlife, it's better than what is in it now & a decade further along in development.

__________________
740iLDUKE
01' DINAN 7 S62 Swap - Stratus Grau
(1587 produced in SG 440)
02' 4.6is DINAN X5 S2 Supercharged
833/3258 produced | 1/27 Dinan X5's