My car is an E39 530i registered Dec 2000. I had the MK3 computer fitted as standard with the widescreen monitor. I upgraded to the MK4 computer a year ago and had the BMW dealer code it to the vehicle. Thank god I knew how to access the service menu, as when they brought the car round I checked and found that it still bore all the hallmarks of its previous host, an E53. All they did was to update the nav firmware, so I sent them off again. This time they did manage to code it to my car and I had attained full functionality of the nav computer.

I believe they didn't set the computer properly to my radio module as I could not access the radio service mode recently.

Any how I am now about to embark upon this task myself to ensure that all relevant functions of my entertainment system are active.

Please excuse my ignorance but I have no idea on how to connect the IBUS interface to my cars system. I would appreciate it if you could give me a list of the exact parts I will need including any wires etc and where to connect to.

I shouldn't have any problems with regards to connecting the interface to my laptop aswell as installing the Navcoder software ready to run.