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

Coolant leak identified

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Old 09-18-2008, 01:37 AM
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Default Coolant leak identified

Based on where the coolant was dripping I had thought it was loose Banjo on the Turbo, or one of the @#$!$&% Alum crush washers, until I saw the inside of the bell housing

<img src="http://pictureposter.audiworld.com/58573/img_0822a.jpg">

Surprise, it's our old friend the Afterrun coolant pump. And it made quite a mess of things.

<img src="http://pictureposter.audiworld.com/58573/img_0820a.jpg">

Back at ya Mr. Bosch...

<img src="http://pictureposter.audiworld.com/58573/img_0823a.jpg">

See my sig for progress on the rebuild/stage3+upgrade
Old 09-18-2008, 05:46 AM
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Last picture is priceless!!! A salute to Audi's engineers for hiding it where they did!
Old 09-18-2008, 05:58 AM
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Default Looks like my engine when mine went. I changed it and then a month later I had to take the manifold

off again! When the coolant was sitting under the manifold it hardened the rubber o-ring that goes around the metal pipe there where it goes into the block. The after run pump was nothing compared to getting that damn o-ring back onto that pipe.

<a href="http://s64.photobucket.com/albums/h195/Fast_N_Snow/?action=view¤t=pipe3-1.jpg" target="_blank"><img src="http://i64.photobucket.com/albums/h195/Fast_N_Snow/pipe3-1.jpg" border="0" alt="Photobucket"></a>
Old 09-19-2008, 01:49 AM
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Default Thanks for the tip ! I looked at mine and sure enough it was ugly

Replacing now (while I have the engine out) as a preventative measure
Old 09-19-2008, 05:39 AM
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good call! If the engine is out do it now def! Its a royal PITA when the engine is in.
Old 09-19-2008, 02:40 PM
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Everything on this engine is a PITA. But I can imagine how excruciatingly painful it must have been
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