BMW Questions? Ask a BMW Repair Expert for Answers.
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The way to bleed the system is to have the key on and the heat on max temp but the blower set to its lowest setting. Then the aux pump runs and pushes the air out of the system. If that wont work then replace the thermostat. Then bleed the system again the same way.
Ok, turn the heat on low and high temp with the engine off. Fill the reservoir to the top. Run the engine for 1 minute with the cap off and fill it up to max. Put cap on and run it until it warms up. Then let it cool all the way down and top it off again. If this process wont work, replace the thermostat and start over.
hello anthony,im a car dealer ,i know cars,i just dont know this one too new for me,i checked all hoses feel hot ,but the main hoses on rt and left side connected to thermostat,the hose on left ,passenger side is cooler then the one on drivers side ,i also I thought it was thermostat problem,i jumped both new and old thermostat , neither did any thing
Sorry for the delay...
Is the engine getting up to operating temperature?
i just filled tank ,disconnected plug from thermostat, waited until water got hot,them jumped power to thermostat, no difference, engine is hot raditor cool, still no heat,seems like bad thermostat, or computer not sending signal to open thermostat,