2004 545i with N62 engine.
I got a CEL a while back for coolant temperature too low. I don't remember the actual code number.
I replaced the thermostat, but the fault came back.
This past weekend I replaced the temp sensor in the big hose at the radiator. I haven't driven it enough yet to know if that solved the problem.
Any ideas what else could be the problem (in case the fault comes back)?
Thx.
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