A6 / S6 (C5 Platform) Discussion Discussion forum for the C5 Audi A6 and S6 produced from 1998-2004

BAD Coolant Leak !!!

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Old Oct 14, 2011 | 07:58 AM
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Default BAD Coolant Leak !!!

my 2000 Audi just started to leak recently & it was only dipping at first, now it pours out as soon as i fill it up. I was wonderin if any1 could help me out. I can;t seem to find the leak. Its leaking on the driver side behind the turbo, between the engine & the transmission. I was wanted to know if this is a common problem.
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Old Oct 14, 2011 | 09:13 AM
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aux coolant pump, very common.
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Old Oct 14, 2011 | 10:23 AM
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i'm gonna check that but i'm pretty sure its something different. do you have any other sugestions
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Old Oct 14, 2011 | 11:31 AM
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Originally Posted by wayneraymond
i'm gonna check that but i'm pretty sure its something different. do you have any other sugestions
Why are you so sure it is something else? Aux pump is common. A leak that pours out should be easy to find.
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Old Oct 14, 2011 | 03:43 PM
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everything is so tight you cant really see the leak unless you disconnect & move stuff around. thanks for the help. i'm gonna check it out 2morrow.
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Old Oct 14, 2011 | 06:33 PM
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i took all kinds of stuff apart and i can not find that leak anywhere
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Old Oct 14, 2011 | 06:38 PM
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Did you check the pump as suggested?
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Old Oct 14, 2011 | 08:48 PM
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could be the thermostat housing mine just cracked too
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Old Oct 14, 2011 | 09:44 PM
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Originally Posted by 4Driver4
Did you check the pump as suggested?
I'm guessing not.

Wayne, your symptoms match my own. When I finally got the APR bi-pipe off (*sigh*), I stuck my hand in between the manifold and the engine and found that my pump had literally fallen apart.

If you're going to DIY, here's a few guides you should look at first...

Removing the manifold method:
https://www.audiworld.com/forums/sho....php?t=1526828

Without removing the manifold method:
https://www.audiworld.com/forums/sho...php?p=13870560
https://www.audiworld.com/forums/sho...php?p=14547593
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Old Oct 16, 2011 | 12:54 AM
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Originally Posted by Bradw
could be the thermostat housing mine just cracked too
Probably not, since the thermostat housing is under the timing belt cover, under the water pump at the front of the engine (on a 2.7t), and his is leaking at the rear passenger side.

I did my auxilary water pump a few weeks ago the long way, by removing the intake manifold. I don't think my hands are small enough to do it the way described in the threads linked previously. Wow! I didn't replace my hoses, but replaced all clamps with worm clamps. No more leaks.
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