Hi all, I writing here so that maybe somene has an idea regarding my problem. I noticed on the floor on driver's side, just in front of the seat, wet area cca 5 cm2 (2" sq). I really don't have any idea where could that be from. I checked all passenger seats and carpets and floor, all are dry (front and rear). I checked area beneath and along driver's door, all is fine. I even checked beneath the car (although I just took photos with my phone) to look for rust, but not now, nor before, have I ever seen this car is rotten from the rust.
Does anybody have any idea?

 

Search for the “duck bill” issue regarding the a/c condensate drain.

 

I did, even before I had this problem, but isn't with clodged duck bill water on the footrest on the passenger side?

 

Rust is unlikely since the XK's body is all-aluminum. Your profile does not indicate it but do you have a convertible? If so, might be a leak in the front seals.

 

You're right, sorry. I have coupe. And yes, I forgot about XK aluminium monocoque
But I guess it must be leaking somewhere, probably the doors. And it is the lowest point of the floor there, so all water that gets in, colects there. Car is, when I don't use it, in garage. But I drove on the rain few days ago. I noticed that on couple occasions during last few months too. At first I thought it was from wet footwear and that it didn't have time to dry, but legs are far front, maybe while entering I step on that spot, but that's it.

 

Perhaps a window seal? You did not indicate how close the wet spot is to the door on the driver's side.

 

the wet spot is approximately between and slightly in front of the hooks for which the carpet is attached

 

Ok, sorry, I got nothin'.

 

Hehe thanks anyway
Only option is that water found its way to the front of the seats and stood there, maybe it didn't evaporate beacuse of the cold weather and plus occasional driving on the rain...what is important to me is that it isn't some serious issue, rather an annoyance..

 

There are two possibilities: the liquid on the driver's side floor came from (1) outside rain or (2) inside heater hose or core leak. What color is that fluid, and does it have the distinctive smell of antifreeze? Is the plastic radiator overflow tank in the engine compartment low on fluid? If so, where do you think that coolant went? It circulates through the heater as well as the engine, so if the heater or its hoses leak, it's on your floor.

Remember that liquids flow to the lowest point, so where you see it puddled probably isn't near where it originated. One way to find the point of entry is to sit inside the car with the windows up while someone else soaks it - area by area - with a garden hose. Make sure you have some bath towels in the car when you do that.

If it's not the heater/hoses and you didn't get a bath from the garden hose, what else can you do to find the source of the leak?
A smoke test might be able to find it. Many auto repair shops have them to find vacuum leaks, but enough smoke inside the cabin might leak out and disclose the source.

Good luck!

 

See this thread:
https://www.jaguarforums.com/forum/x...y-days-230349/

 

Thank you for the extensive info, I'll definitely try that!

 

Already posted on Facebook, so I'll repost it here:
Ok, now I'm really confused. I left the car in garage for few days, until this wet stain drains out. And it did. Today I drove the car cca 20 km and when I parked at home, it was wet again, even soaked. No rain, dry weather. So it rules out water from outside and rain.
In front of driver's seat. See on the picture below. Under passenger carpet all is dry. Wtf!!?

 

If it's not coming from outside ... You just narrowed down the source to the heater or the hoses. I bet that the heat was on when you went for that drive. Did you check the level in the coolant overflow tank? I bet it's not full. Where do you think it went? Remember that liquid flows to the lowest point where it puddles.

It's not rocket science. Find the heater and you'll find the leak.

Good Luck again!

 

Thanks!

So what you trying ti say is that some of this pipes (n 2) are leaking. Am I right?
This picture is for RHD, this pipes look to driver's side which suports this theory.
Tbh, I liked rain theory more...

 

Maybe. As I said, it's either the heater core itself or the hoses, or both, that's leaking. There's no other possible source after you eliminated rain intrusion.

Here's a simple diagram of how your heater works. There are 3 components that can leak: (1) hose in; (2) heater core; and (3) hose out.The heater core is inside the passenger compartment under the dashboard. It's a mini-radiator that gets hot as coolant from the radiator is circulated through the system. Get under the dash with a flashlight and look around for signs of leakage. See:https://bereadymn.com/how-does-a-car...r-system-work/

 

If it’s a coolant leak, I would have thought you’d tell almost immediately with your nose. It has a distinctive smell, especially if it’s leaking when hot.

 

I agree, if you’re not smelling it, it doesn’t seem likely.
Could still be the duckbill if there is a crack or loose fitment that allows the condensate to leak toward the driver’s side.

 

As a result of the COVID-19 pandemic, many people have lost their sense of smell. The first clue is the radiator overflow tank in the engine compartment - if it's full, the coolant system probably isn't leaking and the next suspect would be the duckbill. But ...

The OP is in Croatia, where it's winter and temperatures usually are below 50°F. I'm pretty sure that when the Automatic Climate Control is in Auto Mode, the AC compressor automatically shuts off in cold weather (unless defrost mode is activated), and doesn't produce any condensate. So there wouldn't be any water in the duckbill to leak out.

 

If you haven't yet found your leak, take a look at this thread and the other linked in it.

Waterbag in Fender? - Jaguar Forums - Jaguar Enthusiasts Forum

That could be a possible explanation.