Combox replacement

[TonyW1967]

Hi All, not sure if I'm on the right forum, but I have a 2011 BMW GT 530d and a while ago, lost a lot of functionality between my phone and the car - I can still take/make calls, but many of the other functions have been lost.


I did a bit of research, and believe the combox needs to be replaced, so I purchased a used (working) combox from eBay, but before I attempt to fit it, I have a few questions;


The Combox (Telematics P/N 9257151) was removed from a 2013 BMW 1 series - it's the same P/No, and the seller assured me it is a cross-fit, so should function. I believe that although the unit is coded to a different car, the functionality should be fine, but it won't work with BMW Assist - I'm not worried about that, it's not something I need.... so, it shouldn't need re-coding.


BUT, I have also read that there could be possible issues - USB might not work, the Combox could be 'constantly powered up' (the Network stays awake) which could drain the battery or set the alarm off, and finally, that the replacement Combox might need to be exactly from the same year as my car.


Any advice would be gratefully received!