OP I was wondering if it could have been related to FEM issues people are encountering, hence the weather question. Any other odd electrical symptoms?
Have you noticed any change in fuel economy? Is the car cranking longer than normal to start?
All of my previous 335i's encountered similar symptoms, although they were N54 cars. Without fail it was related to HPFP's and injectors. Whether or not that is your issue can only be determined by having a dealer read the codes. I do recommend having that done.
I sincerely hope it is none of the above! Sorry you all are experiencing this issue but I look forward to hearing what codes were stored. Best of luck!!!
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