I had my water pump and thermostat replaced recently and they did remove the intake manifold and replaced the gasket in order to gain access to the water pump assy.
Owner reviews for water pump
New water pump - HEPU $30.00
Just had this fail on our wagon (EA888 Gen 3) and independent shop charged $900 but that included the OEM full water pump assembly (not a rebuild, brand new) along with coolant flush and a few gaskets.
I have a 2015 R and my water pump failed in January, about 2 months before my warranty expired. It was covered by the dealer under the warranty so not sure what the cost was. Pump and thermostat were both replaced.
I have a Gates part with a plastic impeller in my car now and it's been attached to that motor since late 2015 with no issues when it was in my e34 and isn't showing any issues now in my E30.
Water pump refinement Again, not looking for anything miraculous here, just making for a smoother flow.
I purchase the all aluminum pump made by Graf from FCP euro, they have a lifetime warranty, free shipping and good prices. I removed the manifold to get to the water pump. I had a problem with the cheap thermostat that came with it. It caused my car to run hot.
I have a MK6 and a MK7 and they both suffer the same crappy design. Making a water pump primarily out of plastic is just a bad idea. My MK6 is on at least it's third water pump at a little over 100k miles.
Water pump failed on the gates timing belt kit and engine shredded only 16000 miles on it
Gates water pump failure
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