5-Series (E12,E28, E34, E39, E60)Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)
gm111.I have to replace the gm111 in my 03 530i,I found a used one from same year and model car but a different part number.Dose anyone knows if they are interchangeable and what is the difference between the high and low versions.
From memory the higher part numbers had later versions of the firmware, i.e. enhancements were made to the code within the module. Some of these may work without dealer involvement, but others may not.
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