Is there an easy way to determine if it's my water pump or just a leaking hose without tearing things apart first?...I can't see where my leak is, I can see where it's coming from, should I be able to "feel" if it's coming out of the pump or if it's a connection?...It's a very dramamtic leak...I put my coolant in, nothing happened, when I topped it off with about 1/2 gallon of water it started running out and didn't stop for a while...

If your radiator cap is compatible (it is on my '79), you can borrow a cooling system pressure tester from AutoZone. Just pump it up to your radiator cap's pressure (cold engine, please)...and look for cooling squirting out of your system.

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'01 SLK320, '79 450SL & '01 C320 -- What? 3 Mercedes? I am DEFINITELY crazy!!!

Thank you!!!!!!!!!!!!!! I will try that this weekend before I start tearing things apart!