Originally Posted by Qsilver7

Since you still haven't created a signature to indicate model/model year specifics...I'm going to assume that the rear washer line is in the same location through the production of the e53 X5...and I used my 06 to pull up the diagram.

It appears that (at least) the last portion of the rear washer line is in the headliner. And from past discussions on this topic (including the e39 Touring models that have a similar set-up)...many times when the rear washer doesn't work...and the pump has been checked out to be okay...there may be a blockage in the hose. Like mentioned above...it's usually clogged near the end (see part #1, #2, #3 in the diagram below). Remove enough of the stuff around these parts....see if you can clean/check them for a clog.

Again...help us help you better and really consider creating a signature. It also helps forum members in the future that may run across your posts...if they have the same question or issue that you have...it may or may not apply to them depending on what model you have (could be different engine, different tranny, different set-up, or change in production based on build date).