coolant leak i think it could be the coolant afterrun pump but my car only has 36k miles
10-28-2007, 09:12 AM
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coolant leak i think it could be the coolant afterrun pump but my car only has 36k miles
is it normal at this mileage ?also i see a small puddle under the intake manifold any suggestions whould be apreciated
10-28-2007, 11:37 AM
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pure ms has the pump like for $106 is it a genuine audi part cause other places sell them for $156?
should i buy it from them or should i go elsewere ?carson at riverside has them for $146
10-28-2007, 03:44 PM
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It's not a Genuine Audi part.. It's OEM..
iirc Bosch makes the pump for Audi. Our part comes direct from Bosch, not through the Audi dealership. Same part, different box.
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10-28-2007, 05:20 PM
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Just pulled mine....
Here's what I found:
Like others have said the leak tends to be from either the O-ring within the pump or a gasket between the two pump halves. Mine was pretty bad at about 150K; the seal was crumbling, the o-ring was pretty much a square, and the pump itself was cracking around the screws. Yours most likely is not nearly as bad as mine and may be fixable.
If you do a search you'll find Mark has the o-ring spec. I looked them up in McMaster Carr and a pack of 10 Viton rings was like 8 bucks. If your seal is bad, however, you may be SOL, another AWer Mike tried a fix with RTV and it failed after a couple months.
HTH,
Rob
PS. I didn't replace mine, I just put in a short length of 3/4" heater hose in line. My rationale is that in the 5+ years I've had my car the pump has never once turned on, secondly I don't tend to beat the **** out of the car and just park it, and finally the darn thing will just fail again with the high under hood temps and not being used.
Like others have said the leak tends to be from either the O-ring within the pump or a gasket between the two pump halves. Mine was pretty bad at about 150K; the seal was crumbling, the o-ring was pretty much a square, and the pump itself was cracking around the screws. Yours most likely is not nearly as bad as mine and may be fixable.
If you do a search you'll find Mark has the o-ring spec. I looked them up in McMaster Carr and a pack of 10 Viton rings was like 8 bucks. If your seal is bad, however, you may be SOL, another AWer Mike tried a fix with RTV and it failed after a couple months.
HTH,
Rob
PS. I didn't replace mine, I just put in a short length of 3/4" heater hose in line. My rationale is that in the 5+ years I've had my car the pump has never once turned on, secondly I don't tend to beat the **** out of the car and just park it, and finally the darn thing will just fail again with the high under hood temps and not being used.