Why Is My Coolant Light On

[EnvyM3]

My car has 46,000 miles and the coolant light comes on normally when I start my car. It satays on for about 5 mins until the car warms up and then shuts off. It also happens sometimes randomly while I am driving a long distance. Is it just the cold weather? I checked the coolant level and it is fine.

[Furious]

when was the last time something was done with the cooling system? maybe they didnt bleed the system completely.

or you could possibly have a fault in the sensor.

[328iROCKSTAR]

funny that you mention that because i just bought a 2000 328i about 2 weeks ago from a Certified Pre-Owned BMW dealership and my coolant light has come on quite a bit.

make sure that there is nothing leaking from underneathe the car. are there any funny smells or anything? cause luck has that my car was leaking today and i had it towed over to the dealership.

strangely enough i was just told that it was the water pump and thermostat housing that was leaking. and under my 50/50 warranty ill be paying a good $400 just to get it all replaced. as my own mistake i authorized them to fix it before researching the parts and they were both selling online for a total of only $110.

just thought id give some input on my problem with the DAMN COOLANT LIGHT!

[peterkulesza]

the RED COOLANT LITE????

e36 was notorious for bad thermostats, bad plastic impeller h20 pumps and radiators (which self destruct at some pre-ordained mileage). do not knwo whether this is true for e46 ghead

i'd chek this, as he says in the last post....