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FWIW, on my car the PO had replaced the water pump after the impeller failed. Last year we pulled the oil cooler that sits atop the engine to replace the o-rings, which were leaking oil. While it was off we looked in the water side of the cooler & found a bunch of plastic shards from the impeller. Makes sense since it's one of the most restrictive places the coolant must flow through.
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2004 Boxster S - 50th Anniversary of the 550 Spyder
2000 Carrera Cabriolet
2016 BMW R1200R
1971 BMW R75/5
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