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You know, if they *tried*, I don't think they could've come up with a poorer design...

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Old 11-25-2003, 07:29 AM
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Default You know, if they *tried*, I don't think they could've come up with a poorer design...
Plastic impeller pushed onto a knurled shaft, heat stress is probably the culprit here.
It was spinning on the shaft at high speed, creating the temp rise.
It was even with the water flow at low speeds, resulting in normal temps.

<img src="http://jbipes.home.comcast.net/jpgs/impeller.jpg">

<img src="http://jbipes.home.comcast.net/jpgs/impeller2.jpg">



<img src="http://jbipes.home.comcast.net/jpgs/pump1.jpg">


Unfortunately, the new pump is the same design.

Tech has been working on it since 6:30 this morning, and is about half way through removing all the other components.

Not sure yet if the car will be done today.
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Old 11-25-2003, 07:35 AM
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that sucks....NICE too look forward to..
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Old 11-25-2003, 07:43 AM
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Boy, that is a crummy design.......
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Old 11-25-2003, 07:57 AM
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You'd think Audi would do better as this is a critical part.
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Old 11-25-2003, 08:03 AM
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Default Thats why they only go 50K on powertrain.
Same quality as the belt tensioner.
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Old 11-25-2003, 08:29 AM
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Default The impeller is molded on the knurled bushing. Maybe the bearing has gone bad...
which in turn might create enough heat for the metal parts to expand and crack the impeller.
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Old 11-25-2003, 08:56 AM
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Default Sh*tty! On another note, any way we could VAG-COM my car soon? ESP not working. Studying the Bentley
right now.
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Old 11-25-2003, 09:11 AM
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Yea sure, Thursday. I'll be at home.
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Old 11-25-2003, 09:13 AM
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You sure? Thanksgiving and all. Shouldn't take long, just need to get any DTC's.
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Old 11-25-2003, 09:15 AM
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I got time in the AM or around Noon. Family will be home. Let's talk later, I'm at a "client"
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