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BMW 3-Series (E90 E92) Forum
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Engine temperature of a BMW 330i
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06-28-2016, 05:08 AM | #23 | |
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Again I'll suggest that the E90 doesn't have a water temp gauge merely because of real estate issues. The gauge cluster in the E90 is small relative to past BMW 3-series designs, which I think is the result of incorporating the I-drive screen into the dashboard. Additionally, I'm sure the engineers were of the mind that a water temp gauge was not necessary given the level of cooling system control that most modern cars have. IMO I think it is the opposite of what you guys are speculating about the variation of engine temperature. I think with the use of an electric variable-speed water pump and an electronically controlled thermostat, the engine temperature can be actually more precisely controlled.
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A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
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07-17-2016, 08:19 PM | #24 |
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You can read the actual water temp in the test mode. N52 runs at around 200-220 F. if your in sport or manual and pushing the car it will drop to around 180 or lower at times. I've heard that the reason there is no actual dash gauge is that since the temp varies so much depending on what you are doing. that they didn't want to freak out owners with the gauge moving that much so the Z4 that has gauge only moves if things are really wrong. you can take that last bit with a grain of salt because I can't confirm that with BMW
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07-17-2016, 09:51 PM | #25 | |
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Drives: '05 E90 330i Manual
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07-21-2016, 03:07 AM | #26 |
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The car actively works to get the temperature in the 95-98(c) as it is the most efficient for fuel consumption.
If you plug-in the INPA diagnostic computer, you can track what the DME does with the electric water pump and the thermostat. It will close the thermostat at lower temperature to make it raise, and it will turn on fan and ramp-up the pump speed when it reaches 98 to return to 95. The water temperature is almost constant whatever the external condition or load. |
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330, bmw. engine, temp |
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