charley95

Wondering if anyone has experienced no condensation on the ground after running a/c? The floor in my garage was dry after a drive on a hot humid day. I've heard that it's possible it may leak on the passenger side front carpet in which I notice a water stain on my front floor mat.

bclexus

Hi Charley95,

My 2018 GS 450h rarely shows any condensation discharge on the ground even after driving in days of 100° temperature and/or very high humidity of 80% to near 100%.

Occasionally I'll see only a drop or two (literally) of condensation on the garage floor, actually behind the car a few feet, but never truly underneath the car where I'd think the condensation discharge tube is likely located.

I hope this helps!

charley95

Thanks BC! I guess I'll jack it up later and take a look underneath and see if I can find anything.

NJLEXES

Keeping in mind A/C drain tube is up really high and drains onto housing (Can't remember which housing) in the GS350 so it might not puddle very much.
Most other cars a/c tube is lower draining right above the ground.

bclexus

That's correct, the condensation drain tube is up much higher than many other cars - and I think it may actually drop onto the transmission case/housing which is going to be warm, which in-turn is going to help it to evaporate rather quickly.

jgscott

iTrader: (1)

I looked for it a few years ago because if you can use the little cleaning brush and solution it helps to keep the a/c cooler also. Found it buried and near impossible to get to at home away ,up above the trans.

charley95

I looked at a few Tube vids. and it appears it's above the bell housing which some have been able to access but it's a tight squeeze to get at. It doesn't look like a hose but more of a rubber plug with a slit in it to drain and they just remove the plug. My RX drains quite well.

bclexus

@charley95 - I just returned from driving about 4-5 miles in 101° temperature with about 48% humidity and pulled into the garage. I looked down and immediately thought about you!

This is what I typically see of condensation - just a drop or two of water, and totally evaporated in less than a minute...

bclexus

This image is not of a 4GS 350 but this is what you're looking feeling for above the transmission case and a little toward the passenger side. It'll be a grommet that has a slit in it for the drain hose to protrude from it.

.

A/C EVAPORATOR DRAIN

bclexus

Here is what the drain hose grommet with a split for the drain hose to protrude looks like..

.

charley95

Thanks for posting that BC! It just seems strange to me that my RX leaves a trail of water across the garage floor and the GS does not?! When I'm not so busy, I'm going to lift the car and investigate.

bclexus

.

A/C EVAPORATOR DRAIN LOCATIONS

bclexus

@charley95 - Good luck feeling your way to find it! I hope you have long, skinny arms and enjoy hugging a transmission!

goose300

Any way to get to the AC drain from inside the car? Been trying to clean out my drain for ages but yeah since its in that transmission housing it's a pain in the *** to get to

EdgarLex

I have been doing some research on this to make a vid for my YouTube channel. "Easiest way to clean the AC in the GS/IS" So far it ain't looking good

Want to find a way to make easy for ppl to do it w/o even getting the car in the air. Will prob post a vid on it soon cause my AC is getting a moldy smell again lol.