Finally got myself a infrared thermometer and did some snooping under the hood as my coolant light goes on and off every once in a while. Lately, coolant temp gauge is running just slightly under half or exactly at half where it previously used to run at 1/4 on the dot. Coolant expansion tank is filled to the correct amount, but took some readings and don't think these are the right temperatures. Coolant Temp switch is functional, and did the newspaper test with the fan. I read that on a hot engine the fan should tear the paper up, mine just slowly came to a complete halt, then slowly started spinning up to speed.
Might be answering my own question here, but is the fan clutch the culprit? Have a 91 325i. Temperature readings below:
Top radiator hose 86-88 C
Water pump hose to thermostat housing 84-86 C
Bottom radiator hose 83-85 C
Might be answering my own question here, but is the fan clutch the culprit? Have a 91 325i. Temperature readings below:
Top radiator hose 86-88 C
Water pump hose to thermostat housing 84-86 C
Bottom radiator hose 83-85 C
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