Water pump OEM Audi or GRAF

I installed the aluminum pump (Graf) on the wife's Tiguan and it has worked great since. Have put 40K miles on the metal pump and no issues.

I brought in my 2019 Audi A7 for an alternator recall. The car has 40k miles on it. While the car was in they found the water pump was leaking and said they replaced it under warranty along with the alternator.

GRAF makes this particular pump without the magnetic impeller, and it’s the best option.

Currently own a ‘15 S3 with 130k+ miles. Nothing really major to report for me outside of some known common issues with this generation (water pump, PODS, etc). Car has been great and honestly easy to maintain if you can DIY oil changes, brakes, and DSG fluid changes.

I quite enjoyed our 2.7t, it was stock and trouble free for all 200,000km. Not a single coilpack, turbo, nothing, oil changes and a timing belt/water pump service at 160,000km.

Carbon cleaning, water pump replacement, possibly turbo replacement, timing chain, and dsg service are large ones over 100k miles. Those are issues I've had with my a3 with the 2.0t with over 138k miles.

the metal fins are spot welded like shit on these cheap metal waterpumps. my graf pump also started to leak from the weep hole after a year too

I have the same exact issue on my 2021 Q8 coolant leaking in vaccum system they want over $8k for repairs just hit 51k miles

2015 Audi S3 with 93k miles. One year of ownership (about 11k miles in one year) cost me about $5.4k in repairs out of pocket; water pump replacement, coolant issues, leaking oil.

Have had bad luck with graf metal impeller pumps, multiple failures over 2 different cars.