BMW Questions? Ask a BMW Repair Expert for Answers.
My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
If you have not had the fault codes checked at all this needs done.If a code is set the code needs diagnosed to locate and repair this issue here.This needs done with a fully compatible scan tool that will plug in and communicate with all computers in your model.
If there are no codes or this has been done already and there are codes post them here and let me know.
It is possible this may be an internal intermittent fault with the electronic ignition switch as some of these can fail in some cases.If you can get the code info and post it here let me know.If you cannot do this let me know as well.
If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service,your 5 star rating is appreciated.You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.