Have you thought of using Sugru to make sure it does not leak? I have used Sugru for random fixes and it is supposed to be waterproof. Just an idea.

Last year the tube behind the wheel covers were leaking (I used that sticky black tubing tape and then put a clamp directly over where the hole was- still good now).

This year the rear pump was leaking. I ordered 2 replacement pumps from amazon for $17 each and replaced only one. So far so good.

I don't think it needs anything extra to seal it. The rubber fits tightly over it and the ribs are almost like a barbed fitting. I blew on the hose and it didn't leak at all even before the ziptie clamp.

I have a replacement hose now which is BMW part: 61687300356 which is the connection from the rear washer pump to the splice behind the rear seat. I should probably just order the rest of the hose which I believe is: 61667208073 (preceded by 61687291664).

It is a lot of work to replace it and the part took a over a week to arrive which is why I patched it.

Here is the TIS for replacing the rear line. It took me a while to find (and find again for the second time to post here):

https://www.newtis.info/tisv2/a/en/e...ystem/EswtqUZM

-Rich

One of the pumps on my 02 X5 started leaking this winter.Leaked right in the middle of the pump body.

I have a 2011 X5. The washer fluid will periodically go empty after use. I checked the tank and didn't see any signs of leaks. this week i filled it back up and the puddle of fluid is under the left front bumper. I assume it is the hose to the headlight jet. any idea how to get to it?

You can get to the washer jets by removing the fender liner. IIRC it is a rubber hose except for the Tee/Elbow fittings which are the most likely to have broken.

I had to replace the Tee fitting on the passenger side of mine. ECS tuning had the fitting for under $10.

My worst experience with the whole washer setup on my e70 was that I had the one inside of the car burst before I got the car. I am pretty sure that the previous owner didn't have cold climate washer fluid and it froze and burst inside behind the center console. It would then just leak out under the front carpet and leak out through the floor drains. It took a while to figure out where the leak was coming from.

I ended up just splicing it with some tight fitting rubber line until I could get a new line. I got the new line from the dealer but the rubber splice has been fine so I haven't had to install it.

I also removed the fuse to the headlight washers, I find them just annoying in the warm climates where they just spray and leave water spots for no reason.

-Rich