Windshield Washer fluid leak

[tjpike]

Hi everyone,

my windshield washer fluid reservoir has a slow leak. I have determined that this leak is coming from the windshield washer pump grommet.

I replaced the grommet, but it's still leaking from the same location, imo it's not a great design for the windshield washer grommet. How do I go about fixing this? Is there a special way to install this grommet? An after market replacement that is better?

On a side note, I was made aware that the E39's have a screen/filter on the grommet itself, do the E38's have these too?




Not my picture, but picture for attention.

Thanks in advance.

[Timm]

Although it may appear that the grommet is leaking, the pump itself can leak at the seam and this is often misinterpreted as a grommet leak.

[PiotrC70]

Likely having the same issue and it is a mofo to try and get the fender liner out every time to troubleshoot. I replaced all (I think)3 grommets, still had the leak. Took everything apart again and wrapped electrical tape around the pump nozzle a few times to add thickness and push the grommet outward and that helped, but still leaks. I didn't bother with it a 3rd time and just coded the damn thing out to stop giving me low level warnings... will get to this eventually but not high on the priority list. When I had the pump out, I didn't see any signs of cracks or anything that would lead me to believe it was the pump but it's unfortunately the next logical step. I can't recall if there are any hoses along the back side that could potentially leak as well.

[Grady in Texas]

What Timm says - Mine leaked and replacing the grommet only helped a little. Eventually the pump shorted out so I replaced the pump (~$12 @ FCP) and no more leaks.

[chrisn7]

The reservoir under the bonnet for the intensive fluid was suffers the same issue. Took me multiple tries to fix. I finished up finding a piece of very thin wall rubber tubing over the pump end lightly lubricated to it could be forced into position. I tried an E46 combined grommet and filter, but that was no better.

And yes, there is a filter fitted, but it usually falls off into the bottom of the reservoir when the pump is removed.