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Old 03-31-2010, 03:29 PM
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coolant leak- whats this metal box?

hi guys,

my coolant is obviously leaking and i need to find the reason why. what is this metal box? it has coolant in the little dimples. also it appears the coolant only goes down to a certain level then stops leaking. would you guys think this is the expansion tank issue?

thanks!
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Old 03-31-2010, 04:05 PM
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ABS unit/Hypro Pump.
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Old 03-31-2010, 04:50 PM
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thank you sir!
just figured out after a little prodding. expansion tank is leaking and spraying coolant on there.
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Old 04-01-2010, 06:18 PM
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I have a pin hole leak on my expansion tank,Does the expansion tank separate from the rest of radiator? or do you have to change the whole thing?
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Old 04-01-2010, 06:30 PM
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I have a pin hole leak on my expansion tank,Does the expansion tank separate from the rest of radiator? or do you have to change the whole thing?
expansion tank is a separate unit.
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Old 04-01-2010, 06:48 PM
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Thanks Tom
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Old 04-01-2010, 07:01 PM
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From e38.org. Had to do this on my e36, pretty easy.

Scott
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Old 04-01-2010, 07:57 PM
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Quote:
Originally Posted by gnehzekul View Post
thank you sir!
just figured out after a little prodding. expansion tank is leaking and spraying coolant on there.
This happened to me 2 weeks ago. I was picking up my daughter from school as we were walking back to the X5 I noticed a large puddle of water below. I didn't know what it was so I had it towed.

Rasmussen provided me a loaner through the weekend, it was Friday, and they replaced the expansion tank and hose and coolant. It cost about $600 but it's perfect again!

Good luck.

David
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Old 04-01-2010, 09:01 PM
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600? wow the tank is like 80 bucks
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Old 04-01-2010, 10:36 PM
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600? wow the tank is like 80 bucks

Well...$563! I know that's a lot but I work too much and like to spend time with the family. I have a hang up on taking any of my cars anywhere beside the dealer for servicing so I end up pay too much I know.

David
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