Reviews of VDO water pump

i have a VDO water pump. its been in there 7+ years and has been working fine so far.

Only the first one failed to pump, the others spring a leak in the housing.

I just used the vdo/continental pump. The plastic end on it makes it more prone to a leak, but hopefully by the point I do it again preventatively, there won't be a leak. Been 10k miles, no issues so far. Oil stays abiut 5ish degrees cooler with this new pump/t stat

I am about to do my THIRD water pump replacement on our '08 535xi. I replaced it in 2016, again in 2018, and it is now leaking again. I will get it out today and verify but the leaks have all been along a casting seam in the plastic impeller cover. These have all been factory VDO/Continental OEM pumps. Something is wrong here but it sure stumps me. If I buy another I will get it from FCPeuro because of their warranty but I sure hate doing this job.