Radiator smoking !!!!!! Pls help

Hello guys my 2008 e60 lately it's been smoking from the radiator but haven't got any overheating lights on. Over 3 weeks ago low coolant light came on all I did was add some water at first because I was on a rush to work, the next day i added antifreeze from local auto parts store. Any any help would b appreciated of what could it b or what should I do thx

Originally Posted by Blink_412001

Hello guys my 2008 e60 lately it's been smoking from the radiator but haven't got any overheating lights on. Over 3 weeks ago low coolant light came on all I did was add some water at first because I was on a rush to work, the next day i added antifreeze from local auto parts store. Any any help would b appreciated of what could it b or what should I do thx

check the little overflo pipe that goes across the top of the radiator into the expansion tank its a little 1/4 inch tube that gets brittle and cracks..

Ok thx ill check that

Maybe you have a hairline crack on radiator or the big hose (or even the connector which is platic nipple going to the hose). I'll say look closely, but not too close to see where the steam/smoke comes from.

Also wouldn't hurt to take a look at your coolant temp sensor O-ring to see if that has caused a leak. Mine did.