Water pump OEM BMW or Hepu

in the last 10+ years have been using HEPU waterpumps.

Ive reinstalled another new HEPU(made in germany) pump due to mileage. I don't think anything is wrong with the old one. When I cleaned the o-ring seal contact area on the block it was corroded right where it left an imprint.

153k miles on my original WP. Still going strong too.

Has 137,000 miles on it original water pump. Still good to be used but don’t know when she’ll crap out. Very impressed that I lasted this long.

If you're worried, replace both the water pump and thermostat. I would use a Mahle, Facet, or Wahler thermostat, and either a Hepu or Graf water pump.

I would STRONGLY recommend you to buy ONLY a BMW stamped WP. I learned my lesson the hard way and want to help you avoid my mistakes. The main thing that fails in electric water pumps is the electronics, and the ones not stamped with a BMW logo often have these issues.

I replaced my water pump at about 205K miles. I had seen someone on e90post mentioning he saw fault codes before his pump failed. I decided I could wait if I kept a close eye. At about 205K miles was when I saw a fault code via ISTA/D. It mentioned something about "...water pump speed deviation..."

Am pățit la fel dar cu o pompa Hepu, a mea a avut un sunet înainte să crape și la 120km/h a cedat axul, similar cum a fost a ta.

If the hepu water pump I put on my 3.0T is anything to go by, I don't know that I would recommend them for chains.

I put a Hepu water pump in about 20k miles ago.