So on a trip and currently headed home. I am about 4 hours away from home driving on the highway and get a message on the dash the car is hot and to drive slower or something like that. I get off within 1/2 mile and get the BimmerLink app up and check my temp. It is running about 243f i coast into a gas station. The temp keeps dropping. I decided to turn the heat on and see if I can get some water circulating through the heater core to drop the temp enough to check the coolant. The heater only is blowing cool air. After waiting until the temp is safe to check the levels, I find out it is a little low, maybe a little more than 1 qt. I add that and start the car and pull out of the station to see if it starts to get hot again. It climbs right back up to 240f as long as I give it any rpm about 1200. I stop again as to not damage the engine. It is still blowing cool air from the heater. I am guessing a thermostat failure. Any ideas? I am currently waiting to hear back from roadside to see about having it towed to the nearest dealer. Luckily that is only 5 miles from where I am located.
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05-16-2021, 06:30 PM
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