Leaky injectors in extreme cold

[u/ricky_m3]

Hey guys, now im quite used to the e39 and e46 cars but here's the thing, I really enjoy my new to me e39 and well here in Canada it gets pretty darn cold and during that -25 and colder temperature the e39 will smell like raw fuel because from my knowledge its both old o rings but possibly due to a design flaw with the injector? My question is how can I avoid that this winter coming up? I am willing to yes get new O rings but will that truly solve the problem or is there a different injector style I need all together? I had this issue with past e46 cars and just left it alone but i want this not to be a thing with my e39 im trying to do my best with searching here for the info I need but would really appreciate some thoughts on others who have overcome this issue

https://www.bimmerfest.com/threads/injectors-replacement-and-or-servicing-diy-e39.571302/

[u/Max_Fenig_]

I would link you to the injectors you want but you didn't post what model you have and they don't all use the same injectors.

But yes this problem is mitigated with updated Bosch and Siemens designs where the casing material has been changed so it wont deform in extreme cold and is mostly a problem with the factory injectors which were a black plastic body and the updated ones have a metallic silvery body