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Old 08-23-2019, 01:50 PM
-alex88- -alex88- is offline
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Temperature sensor at radiator outlet

Hi everyone, i have f30 328i with n26 engine and recently plugged the obd scanner to check for errors and got bmw specific code: 10A208 Temperature sensor at radiator outlet, signal, stationary. Also i checked the same error with another obd scanner which gave me generic fault code: P00B4 Radiator Coolant Temperature Sensor Circuit High.

I checked with voltmeter the Voltage of the sensor connector and got 5V. Maybe someone can help me with that? Is the sensor gone bad? SHould i repace it with new one?

I will really be thankful if someone could help.
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Old 08-23-2019, 03:31 PM
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Doug Huffman Doug Huffman is online now
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Very often temperature sensors are temperature sensitive resistors / thermistors.
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Old 08-24-2019, 05:43 AM
pshovest pshovest is offline
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Clear code and see if it returns.
Check connection for corrosion.
Check resistance of the sensor with DMM. Post measurement. 0 or infinite resistance would indicate a bad sensor, but an out of range signal would cause code also.
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Old 08-24-2019, 08:50 AM
-alex88- -alex88- is offline
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Thanks for your replies, i cleared the codes, cleaned the connections, also tried to measure the resistance, there was no 0 or infinite value(about 750Ohm on 70 degrees) so i assume problem was in poor connection, will check again and post updates.

Thanks.
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