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Old 05-26-2019, 08:56 AM
vinnyzbmw vinnyzbmw is offline
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Temperature Gauge Inconsistent

I've recently purchased my first BMW; it's a 2016 428i Gran Coupe. Perhaps this is a BMW nuance that i'm not aware of however I have to ask. Is the temperature gauge supposed to be inconsistent? It seems to take a while to warm up and when it does it's sometimes near the 250 mark and other times on the middle mark between 160 and 250. All cars that i've owned have always been very consistent in temperature.
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Old 05-26-2019, 08:58 AM
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tex2670 tex2670 is offline
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Quote:
Originally Posted by vinnyzbmw View Post
I've recently purchased my first BMW; it's a 2016 428i Gran Coupe. Perhaps this is a BMW nuance that i'm not aware of however I have to ask. Is the temperature gauge supposed to be inconsistent? It seems to take a while to warm up and when it does it's sometimes near the 250 mark and other times on the middle mark between 160 and 250. All cars that i've owned have always been very consistent in temperature.
It takes longer to warm up than your prior cars because it's oil temp, not coolant temp. Can't speak to your inconsistencies, though.
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Old 05-26-2019, 09:02 AM
vinnyzbmw vinnyzbmw is offline
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Ah, makes sense. Just looked at the gauge again and noticed the oil can icon, feeling embarrassed however in any case I imagine a common mistake for new BMW owners who come from a more conventional background...
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Old 05-26-2019, 09:22 AM
El_Quandro El_Quandro is offline
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You can check the coolant temp also if you want in the hidden menu on the dashboard.
press the trip/odometer button for a good 10s and you enter a menu
go to the unlock menu
count up the last 7 digits of your vin number en enter it
if the menu is unlocked you can go to the temperature menu.

can be done during driving

the oil temp should be slowly rising as you drive and when its in the middle of the gauge its to operating temperature, can take a good 10 to 30 minutes. depending on outside temp.
longer means likely thermostat problems

and the coolant is around 110 C for operation temp.
it will heat quicker also, then the oil follows.

baby the car at least until the oil gauge is moving. then slowly let the beast out
i usually wait until >90 C oil temp to push the pedal to the metal.
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Old 05-26-2019, 06:34 PM
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Engine temps are also controlled based on driving conditions. Higher demand for power will cause a cooler map for power, while low-power cruising will cause a higher temp map for efficiency.

It seems counter-intuitive that the more you flog the car the cooler it runs, but BMW engineers are smart that way.
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Old 05-27-2019, 08:45 AM
El_Quandro El_Quandro is offline
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Its true, the electric coolant pump is running mapping based according driving conditions, rpm and sport, comfort or eco mode mode, etc


but not necessarily counter-intuitive:

A hotter engine means better fuel economy (eco/comfort) while a bit cooler engine means more efficient to retrieve all the horses from the stable (sport/sport+)
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