Zilliak

The driver side, right knee and the passenger side, left knee, is leaking water to the point it is flooding my floor. I have called the Alexandrai, VA dealership to assist with locating the valve to drain the backup or to supply the location of the AC drain tube but havent recieved anything. What should I do here?

ukrkoz

Is it under warranty? Raise hell at dealership.
My safe bet is it is actually windshield leak. AC drain won't leak into driver side. Or, moonroof leak, dripping down pillars A on both sides.

ukrkoz

Oh, and if dealer gives you grief, ask for Lexus Territory Satisfaction manager contact. He works for Lexus, not for dealership.

corradoMR2

Welcome to the forum. Agree with the comment to go to the dealer.

Take a video of it when it happens and show them.

Zilliak

Thanks for the welcome! So far I love the car....my idea was that the A/C is backing up due to the drain valve being clogged. The car is at the dealership and I think the suggestions so far have been incredible! Ill keep you all posted.

Zilliak

Good Afternoon All,

Turns out it was the evaporator/drain tube for the A/C. Dealership wants $330 for the part and labor....I cant believe they even offered me that as an option...SO....they state it is not covered under warranty and a spider crawled in created the blockage. Tell me why they cannot blow compressed air and send me home?

Respectfully,

Nick

ukrkoz

Well, AC drain is on passenger side. Unless AC heat exchanger is right above the center of the driveshaft well, and then it leaks equally to both foot wells. At least, you have some diagnosis. I'd call around indy shops and ask how much they will charge for getting car up on the lift and blowing tube with air hose. Unless, of course, Lexus uses only Lexus World Standard Compressed Air and not using it voids warranty.

tnilc

My uncles 2018 NX300 just started leaking water into the cabin. My guess it's the AC drain. I hope the dealer takes care of this and it's not an on going problem.

jsmith

The telltale here is if there is little or no water draining under the car when the AC has been running. The AC drain on Lexus cars are not easily accessible. If you do locate it, I suggest sending a blast of compressed air to clear the clog.

bionictony

if it was me i would find the drain pipe and try to run a pipe cleaner through there.