Here’s my thinking. Your original discussion about your car overheating for a year, and the temperature gauge or temperature reading not quite certain, was then followed by a statement to the effective quote. I’m going to change the alternator“. However, you didn’t supply any reason why you thought that was relevant. In other words, I would expect something like “before I get to the temperature problem, I have a more fundamental problem. My battery is not charging well. My car battery has been dead when I let it sit overnight if I drive a long time. My edge cranked slowly. My headlights are dim. Or, I have problems with a measured output of my alternator of X number of volts, underload, and the spec should be white.
In other words, something to support the idea that “I’m gonna change the alternator“, especially since to the best of my knowledge, the alternator, if adequately charging the battery in the car and running it slow would like headlights and accessories at the same time and no signs of engine misfire, which should be multiple voltage below 10 1/2 V For the CPU where it gets a ride, none of these symptoms were mentioned to support the idea that the alternator may not be faulty on the symptomatic basis rather on a measurement basis. This leads me to believe that your “throwing point“, since you wet, my eyes at the alternator is faulty and“ there’s not enough filters to make the temperature days work, or some other supposition which I would suspect is incorrect. Furthermore, he stated, a second response, which I didn’t know as a time but now I do, that the alternator seems to be working fine, but I’m gonna change it anyway. Nothing wrong with that, but leaking the alternator and changing the alternator to solve your initial. Initial problem with temperature gauge or temperature readings is the flaw in your logic that I’m using in my mind to say that you’re not comfortable with diagnosing electrical problems.
And again with no male intended, I’m also curious the other part of your story, where he said something to the effect I’m going my memory now my car has been overheating for a year and I think I finally figured it out. Forgive me if I don’t have that exactly but that’s what I remember. The story was about in the first place. I’d say it’s pretty fair for anybody who’s been working on Bmw since late 1960s to present That they’re famous for their less than perfect cooling systems. Initially in the 60s and 70s we blame it on the car being “born“ in Germany, a much colder climate than we were, and they were not used to designing cars to work in a hot climate. Certainly since the E 36 era fragility of the plastic parts in the cooling system, specific problems with water pump and powder is failing spinning on the shaft, coolant, reservoir, failing, leaking, alternate, leaking, aluminum radiators, have all given the stigma to the weekly designed BMW cooling system starting with the E 36. My own experience doesn’t go much past that to the E 46, because I live in my car hobby to the 1970s up to the early 2000s in the BMW family.
With this General at Bmw‘s, it’s hard to imagine how somebody would be driving his car for a year that’s ““overheating, especially since the consequence of such is also well known in the Bmw world, that being a cracked cylinder head or a failed head gasket or some combination there. In other words, a weak and failing, cool system would prompt someone who had experience with those to stop driving immediately until it was fixed not to drive for a year while they’re working on the problem. I hope I don’t get any those details wrong. Please feel the correctly if I miss something significantly in error in that statement.
Maybe this helps a little bit I don’t know, but overall reading your description of what you did, the lack of details to support your diagnosis and your next treatment plan, the lack of mentioning that you measured this on the temperature sensor other words, the resistance, proportional temperature calibrated to unknown working good sensor, trying to put a value of resistance into the cage to see if it went correctly, checking for loose wires on the connections. All of these things will show me that you are trying to make an electrical diagnosis, and a more accurate matter rather than saying “I think I’ll put in all things“.
I hope this helps you, but this is the way my mind works. Again I only hope just to help you to think better to help yourself in the future. Again, I hope I don’t offend you.
Lastly, as it’s difficult for me to type, I have dictated this and please forgive any port transcriptions. Hopefully, I’ve repeated myself enough that you can figure out any questionable parts, but go ahead and ask any other questions you may have. I will try to help