I ve got a 4.8 cluster on my 02 X5 4.4 The thing is that it CAN work properly - even the oil temp and LEDs. But unfortunately the process of coding is a personal secret of a programmer and I can not share it

PS it can be even fitted onto 3.0 and 3.0D but in this case Oil Temp and LEDs will not function properly anyway (this post is a small TIP ).