Coolant leak on 2001 BMW 330i

Alright, I had a problem with overheating. It turned out to be the coolant cap, got it replaced for $15.00 at a local Autozone. About two weeks later, the car ran hot again. I turned off the car and checked underneath it for a leak and found coolant leaking. I waited for it to cool down a bit then opened the coolant cap, completely empty. I refilled it with coolant and it filled up all the way with no fluctuation in level. I capped it and turned the car back on. While the car was running I checked underneath it again and found a pretty hefty leak, not a steady stream but damn close. Anyways, I'm trying to figure out whether it's a hose or a blown head gasket or the radiator. Any help would be greatly appreciated! Thank you!

by in Dallas, TX on February 19, 2010
2 answers
ANSWER by on February 19, 2010
It takes a visual inspection to know where the leak is coming from, we simply cannot do that here. Sometimes this is very hard to find the source, so you may want too take it to a shop if you can't see where it's coming from. Be very careful you don't overheat your engine, you will create a very expensive repair bill!
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ANSWER by on November 23, 2010
my coolant tank seperated from its seal at one point, and i have the same car. i reccomend rockauto.com for parts....they are much cheaper than autzone or the mechanic
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