http://forum.e46fanatics.com/showthread.php?t=665860
masina se incalzeste normal? http://www.bmwforums.info/bmw-electrics-ecus/7745-bmw-fault-codes-their-meaning-bmw-fault-codes-list.html 123 Map Cooling Thermostat Control The electrical connection is there to power a heater element in the thermostat. This enables opening of the thermostat by the engine management system. The engine management system needs to open the thermostat when the engine is under heavy load. Modern engines run at very high temperatures, with a conventional thermostat the coolant around the cylinders would boil under hard acceleration before the water at the thermostat got hot enough to open it and cool the cylinders. With a heated (map) thermostat the engine management system can look at the power requirement and predict the heat build up, therefore it can switch on the thermostat heater and get the thermostat open in time to cool the cylinders. A thermostat that is not working (which is very common) is a real problem for the engine. This is why it is very important that the guy who services your car reads the fault memories as this is the only way you will find out if your engine is reducing power to prevent boiling of the coolant cam asta ar fi ,verifica conectorul electric care intra in termostat.si monitorizeaza daca eroarea mai apare.