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Originally Posted by JCL
I don't know about the M models, which I suspect may have actual temperature gauges, but most BMW models do not have real temperature gauges. They have what looks like a gauge, but it is really little more than an analogue version of the idiot light. There is an electrical circuit involved that moves the temperature needle to 12 oclock for a wide range of actual temperatures. It doesn't move proportional to the coolant temperature. When the engine gets very hot, it pegs to the right. Anything short of that it is not representing a temperature so much as it is indicating 'normal range'. Notice that when you hear about an overheat, the first thing the poster will say is 'it went right over to overheat'. That is how it is designed to work.
My point is that leaving out the gauge, given the above design, isn't a big deal, it wasn't actually useful.
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I agree about the guage and the 12 oclock temp. range issue but I want to know when coolant and oil have reached operating temp. Synthetic oil flows better at cold temps. than conventional oil but like regular oil it does not reach it's maximum lubricating values until operating temp. is reached. A coolant guage would at least let you know when coolant temp. is good to go and therefore oil temp. will not be far behind. Anyway I like to know whats happening in the engine as much as possible but I guess the manufacturers don't really want us to.
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