- Nov 26, 2019
- E90 335i
Anyone had experience with aftermarket electric water pumps (from other platforms perhaps)? I'm considering ditching the stock pump as they are getting pricey locally to me, and I've had issues with cracked housings etc. Meziere, Davies Craig and others appear to have options that might be more durable. Compact size with sufficient flow rate is probably the criteria given our tightly packed engine bays. Running syvecs, not worried about control. Some of them have their own control units in any case.
Have you considered casting an aluminum cover for one of your cracked pumps? I saw a video a while back of someone using their homemade forge and casting a new cover. A little belt sanding and some rtv sealant and I think it'll be a viable option. The stock pump is very capable, just a shame they have the reliability of the N63 valve stem seals..