2001 BMW 740



October, 5, 2010 AT 8:22 AM

2001 BMW 740 130000 miles

My " Check Coolant Level" light keeps coming on but
I am not sure if the car needs to be cold and off when checking it, or cold and running. I can't find
the answer in the manual. Thank you.

2 Answers


Dr. Hagerty

October, 5, 2010 AT 10:16 AM

Open the radiator when cold, no need to start it up.



April, 7, 2012 AT 6:47 PM

If you want to check coolant cold means the car has to stay at least 8 hours these are bmws
also the sensor may has gone it's under the expansion tank pluged in

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