As I continue to decipher exactly how the BMW iBus works, I have a few people asking me which cars it applies to.  Here's a list of the cars that use iBus and the ones that don't:

Car models with IBus

BMW 3-series E46

BMW 5-series E39

BMW 7-series E38

BMW 8-series E31 uses different device IDs

BMW X3 E83

BMW X5 E53

BMW Z4 E85, E86

BMW Z8 E52

MINI (BMW) Cooper R50, Cooper S R53

Land Rover (BMW) Range Rover L30

Land Rover (BMW) Rover 75 R40

Saab 9-3 2003+ Unknown protocol

Car models without IBus

BMW 1-series E81

BMW 3-series E21, E30, E36, E90 Last 2 production years of E36 had ibus-controlled CD changers.

BMW 5-series E12, E28, E34, E60 E60 ver. USA had ibus-controlled seat ocupation sensor, Last 2 production years of E34 had ibus-controlled CD changers.

BMW 6-series E63/E64

BMW 7-series E23, E32, E65/E66

BMW X5 E70

BMW X6 E71

BMW Senior Six E3