Water pump GRAF or OEM Volkswagen

GRAF Water pump

I ended up going with the water pump here: Graf Water Pump . There is no difference in engine performance or fuel economy with the new pump. But it will take longer to warm up, especially in colder weather.

Pros: more reliable pump
Cons: longer to warm up
Vehicle: Volkswagen Passat
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OEM Volkswagen Water pump

My 2019 Tiguan SE 4motion with about 20,000 miles has been telling me to add coolant every few weeks. Today I dropped the car off at my local VW dealership stating I had a possible coolant leak. Just got a call from the service advisor saying hey will need to keep the car overnight bc they have to replace the waterpump!

Mileage: 32186 km
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GRAF Water pump
goon470
  • Overheating:
Rating 1.0

I had a Graf pump as well and it blew up less than a year later, literally the shaft blew off while I was in traffic.

Cons: blew up, shaft broke
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GRAF Water pump

I replaced the water pump in 3/2021. By 2/2022, it started leaking, so I replaced it under warranty. It leaked again in 1/2023, leading to a 3rd replacement. Now, one month in, the new pump is already leaking, this is driving me insane. This will be my 4th replacement in the last 3 yrs! These are GRAF PUMPS.

Cons: repeated leaks, short lifespan
Vehicle: BMW
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OEM Volkswagen Water pump

I had a coolant leak in august. They replaced my water pump under warranty. Brought my car in last week and guess what another freaking leak. They tried to charge me this time but are now fixing it under parts warranty.

Cons: repeated leaks, poor reliability
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