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BMW 523i - E39 Multifunction Wheel

Q
I have just purchased an M Tech steering wheel for my 1997 523i. It fits OK but the radio buttons don't work although the cruise control does. Is this the wrong steering wheel or does it need to be rewired? The wheel I bought has the phone button on it but my car doesn't have the Business system fitted, so any help would be great. Shall I sell it and buy a different one?

A
Yours is an early car and these used a separate control unit for the steering wheel controls. A good BMW specialist will be able to fit a good used unit (forget brand new ones on cost grounds) and get it all working. You'll also need to know what year the steering wheel is as they changed more than once.

 
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