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P0128 Diagnostic Trouble Code Discussion for November 2017

Thermostat System Malfunction

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Trouble Ticket Help Requests for DTC P0128
Help Request Posted
2004 BMW M3 3.2L MIL Lamp on VIN: WBSBL93404
P0128: Coolant temp below thermostat regulating temp. ... advice with this M3. The car keeps throwing P0128, I removed and thermostat to make sure it wasn 19t stuck open even though customer claims he replaced it. The car never seems to fully warm up (temp gauge stays below half) even though the heat blows hot. I...
November 05, 2017