After a disappointing MB experience with a half finished C220 and a rusting W210 320 cdi I bought an E39 530d. What a car! Loved it. Couldn't find one thing wrong with it.
Local BMW dealership managed to talk me into E60 530d. Hated it with a vengeance after E39
Swapped within a week or...
I had the opportunity to study the function of the head unit and the user interface called i-Drive.
i-Drive
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First of all it is very easy to use. Nudge in four directions and twist left and twist right. The twist and the nudge are usually the same movement but they can be alternate...