328i n26 Cali - -128C temp. and 0x1D2008, P0128

vitofrompoland · 11-20-2023, 03:36 PM

Hello.
I have an issue- firstly, I had a CEL, it was about temp. sensor (this sensor from California radiator). I have not replate the radiator yet, but this error appears rather rarely- I delete it with INPA. Next, here in Poland we have temperatures about 0 Celsius, which is about 32F. I noticed that oil temp. gauge is on 160F, even below this value despite riding for about 20-30mins. When I stopped, I check in hidden menu temperatures- coolant temp. -128C and oil about 50-60C. Next I check the car with INPA, fault codes: 0x1D2008 - thermostat jammed open- I was thinking why the thermostat is opened all the time and radiator fan is going with full power. Maybe ECU sees an error with temperature sensor and safe mode on? Not to overheat? Another fault code is: P0128 which I don't know what is it. I read about broken themostat, but why the temp would be -128C? And if it is broken coolant temp. sensor- which one is it?
Sorry for my bad English. Looking for help.
Greetings from Poland.

vitofrompoland · 11-27-2023, 03:36 PM

Anyone please?

fe7565 · 11-29-2023, 09:52 PM

Here is a similar thread with an ongoing search for a solution: https://f30.bimmerpost.com/forums/sh....php?t=2065033

11-20-2023, 03:36 PM	#1
vitofrompoland New Member 0 Rep 20 Posts Drives: F30 328i Join Date: Oct 2023 Location: Poland, Radom City iTrader: (0)	328i n26 Cali - -128C temp. and 0x1D2008, P0128 Hello. I have an issue- firstly, I had a CEL, it was about temp. sensor (this sensor from California radiator). I have not replate the radiator yet, but this error appears rather rarely- I delete it with INPA. Next, here in Poland we have temperatures about 0 Celsius, which is about 32F. I noticed that oil temp. gauge is on 160F, even below this value despite riding for about 20-30mins. When I stopped, I check in hidden menu temperatures- coolant temp. -128C and oil about 50-60C. Next I check the car with INPA, fault codes: 0x1D2008 - thermostat jammed open- I was thinking why the thermostat is opened all the time and radiator fan is going with full power. Maybe ECU sees an error with temperature sensor and safe mode on? Not to overheat? Another fault code is: P0128 which I don't know what is it. I read about broken themostat, but why the temp would be -128C? And if it is broken coolant temp. sensor- which one is it? Sorry for my bad English. Looking for help. Greetings from Poland.
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11-27-2023, 03:36 PM	#2
vitofrompoland New Member 0 Rep 20 Posts Drives: F30 328i Join Date: Oct 2023 Location: Poland, Radom City iTrader: (0)	Anyone please?
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11-29-2023, 09:52 PM	#3
fe7565 Lieutenant Colonel 553 Rep 1,590 Posts Drives: 2012 BMW 328i N26 Join Date: Nov 2013 Location: United States iTrader: (0)	Here is a similar thread with an ongoing search for a solution: https://f30.bimmerpost.com/forums/sh....php?t=2065033 __________________ Help each other: if you manage to fix your issue (especially with help from this forum), don't be a d*ck and disappear. Follow-up by posting the solution so you can help others.
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