Hi - what a popular thread/issue.
I have an e89 23i and I am selling it. However it has a stuck bonnet that won’t open (least of my problems right now) and it’s been sat largely unused so the battery is dead. (Discharge warning / low level warning etc etc)
Having said that she actually started first time surprisingly 2 days ago but has yesterday died completely- I guess I just got lucky first time.
I’ve had non other than the wheeler dealers tv team interested in buying but unfortunately since the battery has died it won’t start and the dreaded handbrake failure message has appeared.
I’ve read the entire thread and all very useful and I’m going to attempt the software update myself (after charging the battery direct in the boot first) only thing that doesn’t seem clear is which cable to use. A few different ones mentioned/posted but not clear on which is best. Can someone share a cable that has worked recently with the 2017 patch data and e89? Just want to make sure I don’t waste 20/30 quid on wrong one.
Much appreciated.