Just a small complaint now.... maybe someone has had this issue or knows what is wrong and how to repair.
Now that it is summer the new AC compressor is pumping out cold air again. Problem is when I first start the car the AC cabin vents blow warm, moist, muggy air, even though it's comfortable outside for the first 30 seconds or so until the cool air starts flowing.
I dont think this is normal, is there a condensate drain somewhere that could be clogged?
Thanks,
Cheers.
Bob

 

What's the status of your cabin air filter?

 

This may help about the condesation drain:

https://www.jaguarforums.com/forum/s...mell-ac-44132/

 

Thanks for the help.
I replaced the cabin air filter last summer, really wasn't too bad.
Thanks to Joycesjag, I read the post concerning Musty AC smell, there is some talk of the condensate drain tube becoming clogged with debris or "nature" that might be the cause. The smell isnt bad, just a blast of very humid air for the first 30 seconds or so even if it's not humid outside. I've noticed at times perhaps a pint of water on the garage floor under the middle of the car in the morning that I believe could be caused by a part way clogged tube that could take a few hours to drain out?
Where is this condensate drain tube?
Thanks,
Bob

 

The fact that there is water under your car probably indicates that the tube is not clogged.

My XJ does the same thing your S-Type does. I think it's just the way it is.

 

Literally a PINT of water? That's huge! The condensate should drain on a continuous basis and rarely leave more than just a small puddle.

Are you operating the A/C in auto mode or forcing it into continuous recirc mode?

Puddles of water and damp stinky air are not normal.

 

A mostly-blocked drain might account for such an amount of water overnight, due to it draining s-l-o-w-l-y. Access to drains.... Er, Brutal's likely to be right.

 

Yes, It's a huge puddle of water overnight, AC is on all the time in continuous recirc mode.
Any ideas where I can find the condensate drain?
Thanks

 

I think your root problem is keeping it in constant recirc mode. The evaporator is partially freezing over and holding moisture. After shutting the car off the ice melts and that's why there's a puddle on the floor and a subsequent musty smell.

Probably nothing wrong with the drain. Try it in auto mode for a while and see what happens.

 

I have huge puddles under mine. You also have to take into account the enviroment your in. It's 95+ every day here my home AC unit pours water out as well, hotter it is the worse the water that's how AC works.

My jag starts warm as well on the AC is fine after a few mins I assume that's just the way it is. Once I do the killer chiller I will see if the refrigerant is low or not?

 

Apparently we don't have access to the drain.

See below:

 

On a/c huge puddles:

Perhaps it could be icing up due to a temperature sensor not working properly. There is at least one that's not the external and is not a cabin sensor.

So, it need not be a blocked drain.

The sensors can all be read by a suitable OBD tool (jag IDS/WDS(/SDD?) or AutoEnginuity).

The usual a/c system works by detecting icing and backing off until it stops. The jag likely does that.