Hey Guys,

I need some suggestions on this problem. At one point my rear floor of my 2010 Jaguar XF was getting wet. I had the sunroof drain tubes cleared out and everything was good for a while. A couple of weeks ago, it rained and my back floor was wet again. I used a wet vac to get the water up and dried it out and it was good. Since then, I have been keeping my car in the garage. It hasn't been out in the rain. But, today, I noticed when driving, the floor is wet again.

I've attached pictures so you can see the pattern of the wetness. (Ignore the white powder, that's baking soda I put down to absorb any smell.) I was planning on having the drain tubes cleared again, but, now I'm wondering if it could be something else. Has anyone seen something like this before?

Any and all suggestions would be greatly appreciated.

 

Why not post in the X250 forum within Jaguar Models (Modern) section. It is highly likely somebody has had this problem as well. Try a search of that forum

 

I've moved your question from General Tech Help to X250 forum. This is the place to post questions about your model.

Graham

 

The best way to find these water leaks is with a garden hose and 2 people. One inside and one moving the hose slowly over the various door and sunroof openings.

You can pinpoint the leak that way, and then hose each other down as a reward for a job well done.

 

Second this. That’s the method that helped me find my three leaks. Yes, three. But you’ll likely have to pull a bit of the interior out first. Have you had your windshield changed, or is it original?

 

It has the original windshield in. Do plan on having it replaced soon. That could be an issue?

 

I asked because often (sometimes) replacement windshields leak. Not the windshield, the sloppy installation job. Ask me how I know. But if yours is original then that’s likely not the case.

Then again my rear windshield leaked and after inspection we found out that it was factory installed and it had sealant missing along the bottom edge. The more you know.

 

I have the same problem with wet rear passenger. I did pour water in the sunroof channels and it exited the rear of the car through the drain. Now, I am perplexed as to what is causing the floor of the car to be wet when it rains. Seems as if all is secure. A 2004 with only 32,000 miles on it.

 

Really the best way to figure any issue like this out is to pull the interior out entirely and look for the source of the leak. You won't see anything with all that trim in place. Pulling the interior out may seem like a big job but it's not that bad if you have the service manual. Took me maybe 4-5 hours or so on an XF. Then pour water on it at various different locations for extended periods of time to find the source. If you notice water coming in but can't find exactly where you can dye it with something that doesn't stick but be careful not to "re-color" your car. I didn't have to dye mine - 15 minutes or so and I found the source(s) of the leak(s).

Common sources (in cars in general): Windshield (front, rear), broken/leaking door mouldings, leaking door card (there's a waterproofing layer inside), leaking air-con (if the drain is clogged), leaking sunroof. Leaking panel seams are also a thing, even if less likely I had one on mine.

Again, the more interior you pull out the easier it's to find the leak, but focus on floor mats and similar. Be careful with the plastic clips. Get a service manual. And don't go about removing the dash - that's likely not necessary and also a major pita.

Hope this helps.

 

Some trim shops also have a smoker tool that pumps white smoke inside the car. Close it all up and watch where the smoke comes out. Good for door, window, trim etc. unlikely to find leaks in drain ducts eg from sunroof. But it's quick, cheap and easy to do