Over heating issue

[Vegas227]

It drops about a gallon every time.

[irish44j]

What exactly are the overheating issues you are having ? I'm reading that "it almost overheats", that fluid "runs out the over flow" & that you are "dumping coolant". None of that means anything.

If you over fill it, excess coolant will come out the overflow when it warms up. Does dumping coolant mean you find 2 gallons of coolant on the ground in the morning ? "Almost over heating usually means your gauge goes above halfway. That could be a faulty gauge, sending unit or bad connection, but in and of itself does not mean overheating.

You may have a leak but I dont read anything that says you are running hotter than normal.

^^ this

after a long drive mine will weep a bit of coolant out of the overflow (inconveniently, onto my solid rally skidplate, lol). And my gauge gets almost to 3/4 before my electric fan kicks in and gets it back below 1/2 (usually while sitting in grid at rallycrosses).

So how much is your leak? a little splash, a few drips, a gallon?

[jeffnhiscars]

What exactly are the overheating issues you are having ? I'm reading that "it almost overheats", that fluid "runs out the over flow" & that you are "dumping coolant". None of that means anything.

If you over fill it, excess coolant will come out the overflow when it warms up. Does dumping coolant mean you find 2 gallons of coolant on the ground in the morning ? "Almost over heating usually means your gauge goes above halfway. That could be a faulty gauge, sending unit or bad connection, but in and of itself does not mean overheating.

You may have a leak but I dont read anything that says you are running hotter than normal.

[Hey_You]

Have you checked for a milkshake yet? (Pull your dipstick, look for "milk" at the top end of your oil on it.) Headgasket leak could be pressurizing your cooling system and causing it to blow out of your cap. Depending on the size of the leak, you will notice white smoke from the tailpipe (steam) or you can pull your spark plugs and see which one is super clean

[irish44j]

I want a milkshake now dammit!

uh.....I'm fairly certain that you don't want a milkshake. Because if you have one, you'll be a whole lot more pissed off than you are right now.

[Vegas227]

When I was pulling into the parking lot there was a trail of coolant so it is trickling out of my overflow hose.... I dont understand why my car hates me so much...

[Vegas227]

I'm thinkin it might be the water pump now. Is there a way to test to see if it is working? I want a milkshake now dammit!

[irish44j]

collapsed coolant hose? shot water pump?

[Jaxx_]

milkshake?

[Vegas227]

I just replaced my thermostat and I am still having over heating issues.. WTF!

[Vegas227]

Thanks Hey You! I will look into getting a new radiator cap. That would explain somewhat why it is only happening occasionally. How much do they generally run and what pressure rating should i get?

[Hey_You]

REPLACE YOUR RADIATOR CAP! Just remember, us lucky M10 owners don't get a overflow stock, so once your radiator cap pressure is released, there goes your coolant on the ground. Also, wouldn't hurt to check for easy signs of a headgasket leak (milky oil, or chemical block test if you have one)

[Jaxx_]

can you expand a little on "dumping coolant"?

[Vegas227]

Thank you lol.. I have a theromstat being shipped to me already. Its made by BMW's manufacture that they used.

[Jaxx_]

you've spent $40 in coolant but haven't replaced the thermostat? what the fuck man. not only that, but your car is losing coolant.