Quote:
Originally Posted by petee_c
The typical life span of a water pump still is an unanswered question in my research. I believe porsche intended it to be a lifetime part according to their maintenance schedule. We are now away from that view.
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I can give a data point - I replaced my water pump proactively (there was nothing that appeared to be wrong with it and no leaks) in January 2015 at 115,000 miles (car is a 2000 so 15 years old). It turned out to be the original WP still, and it wasn't wobbly but the bearing was rough when I spun the WP by hand. The new one was silky smooth.
Jake Raby recommends replacing every 3 years regardless of mileage in
this rennlist thread (kind of old so he may have updated his guidance since then)
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