Coolant Leak- HELP!

[czag13]

So a couple of hours ago I went and dropped my brother off at school, and then parked the car in my garage. Nothing out of the ordinary happened, but when I went to move it now, the coolant light on the check panel was on, and I had a huge puddle of coolant under my car. I looked around, and I took a couple of pictures of where I think it's coming from. What is this part, and why would I suddenly start leaking?

[88325isboy]

I would start at the radiator and all the coolant hoses.

[jrdn223]

i recently went through a bunch of coolant probs. ended up replacing the radiator but also check the hoses around where the clamps are. sometimes the metal edges dig into the hose causing it to tear. this happened to me in like 3 different places.

[Van Westervelt]

Its not the little cork gasket on the throttle body is it? Strangley mine blew and i lost 1/2 gallon of coolant. Those fail pretty regularly.

[jht3]

i recently changed my thermostat and proceeded to lose 2 tanks of coolant before i got all the hose clamps tightened down enough to stop the leaks

so inspect all the rubber hoses and give the hose clamps a couple turns. i find a 6mm socket works much better than a screwdriver...especially for those clamps that are out of reach without a univeral joint and a long extension

[czag13]

ok so i need help ordering a replacement hose... its a water that goes from the throttle housing to the valve cover... i order this part, thinking it was it:
Part Number 13-54-1-719-967-M21
"Water Hose, Throttle Housing Small Hose, 325/e/i/is/iC,iX (09/87-91)"

http://www.pelicanparts.com/BMW/catalog/shopcart/BE30/POR_BE30_WATpmp_pg4.htm

but it's not the right hose. the hose i need has one opening that's larger than 3/4" (about .81) and the other is 1/2. is this wat i need?
Part Number 13-54-1-719-966-M101
"Water Hose, Thermostat Housing to Throttle Housing, 325/e/i/is/iC,iX (09/87-91)"

http://www.pelicanparts.com/cgi-bin/ksearch/PEL_search.cgi?command=show_part_page&please_wait=N&make=BMW&model=BE30&section=WATpmp&page=3&bookmark=14&part_number=13-54-1-719-966-M101

help would be greatly appreciated.... it sucks to be stuck at home because i don't have a car that wants to run without a huge coolant leak
[/URL]

[RobertK]

ok so i need help ordering a replacement hose... its a water that goes from the throttle housing to the valve cover... i order this part, thinking it was it:
Part Number 13-54-1-719-967-M21
"Water Hose, Throttle Housing Small Hose, 325/e/i/is/iC,iX (09/87-91)"

http://www.pelicanparts.com/BMW/catalog/shopcart/BE30/POR_BE30_WATpmp_pg4.htm

but it's not the right hose. the hose i need has one opening that's larger than 3/4" (about .81) and the other is 1/2. is this wat i need?
Part Number 13-54-1-719-966-M101
"Water Hose, Thermostat Housing to Throttle Housing, 325/e/i/is/iC,iX (09/87-91)"

http://www.pelicanparts.com/cgi-bin/ksearch/PEL_search.cgi?command=show_part_page&please_wait=N&make=BMW&model=BE30&section=WATpmp&page=3&bookmark=14&part_number=13-54-1-719-966-M101

help would be greatly appreciated.... it sucks to be stuck at home because i don't have a car that wants to run without a huge coolant leak
[/URL]

The only hose that goes from the valve cover to the throttle body is a gas recirculation hose. No water travels through it at all.. As a matter fact no hose connected to the valve cover is a coolant hose. Are you sure you don't mean the hose going from the thermostat housing to the throttle body?

You need to go to realoem.com and look at the diagram for your car. You should be able to choose the right hose from there.