Thanks for the reply but I do not have this at all
The H-Gate lights flashes during changes & High or Low briefly displayed in message centre when engaged
I had it when I tried several month ago when I took possession of the car, but since they changed my Air Suspension this "The H-Gate lights flashes in message centre" No longer appears. I remember it well it was blinking in RED before while changing from H to L.
However, and excuse my somehow limited english, I am not sure to understand what you mean by : Pressing Manual/Sport button and thats briefly displayed as well depending which range you're in.
Check the plug under the car to the Hi/Low motor, may be bad connection or the switches inside motor or the transfer ecu under left front seat.
There's a button on the H-gate when in High it engages sport mode & in Low range Manual mode, the button illuminates and there's a message on the dash when pressing it.
Pic is right, remember there's two prop's and 4 U/J's to grease, use good lithium based grease as per hand book. You will need a grease gun for the nipples.