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P0128 Diagnostic Trouble Code Discussion for February 2009

Thermostat System Malfunction

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Trouble Ticket Help Requests for DTC P0128
Help Request Posted
2005 Mercedes-Benz C230 Kompressor 1.8L MIL Lamp on VIN: WDBRF40J95
P0128: coolant thermostat. hello car came in running fine with check engine light on found no problem. had another car temp sensor fail recently so we replaced it. after two days of regular driving light came back on same code. we inspected the thermostat and found nothing replaced with...
February 05, 2009
2006 Land Rover LR3 4.0L Poor Fuel Economy, MIL Lamp on VIN: SALAD24426
P0128: Coolant slow to warm up. ... and a P0128 code. Customer said fuel mileage has dropped but I have no info on this code other than the scan tool description and it was accessed by global obd. I am wandering if these vehicles are known for thermostat failures.I do not see any other sympt...
February 26, 2009