Hello.
I'm coming back to tell the outcome of my problem.
Yesterday (August 24), my Toyota went to the workshop. Four days earlier (August 20), following the suggestion presented in previous posts, I placed about 6 cm of garden hose in the water outlet pipe of the AC. From 20 to 23 August I did 500km, with the AC on and I had no problem (I never saw water inside the IQ). With this solution, I realized that there was no problem inside the IQ console.
On Sunday night (August 23), before taking the IQ to Toyota, I removed that addition.
On August 24, the Toyota IQ enters the Toyota workshop in Faro. The IQ was completely “naked”: I removed the bottom (carpet, soundproofing sponges, styrofoam,…). I did this to reduce the number of hours worked with IQ. I explained the problem again, what I had done and the result obtained. The receptionist (impeccable) explained to me that it was the first time that an IQ with this problem came into the workshop. I do not doubt it, as there are very few IQs circulating here (maybe less than 10).
Today (August 25) I went to get my IQ. The receptionist explained to me that they did several tests stopped and on the road and that the solution presented (adding the sewage pipe outside) solved the problem. That's what they did with their pipe - they increased the size of the sewer pipe outside.
In the end, the happiest moment. The receptionist handed me the key and told me that since IQ does all maintenance services at Toyota, this intervention was offered by the workshop manager. Charmed. I felt that thank you was little to thank you for your consideration.
Based on the experience I had, I think the following: with the recharging of the air conditioning, it becomes colder when it is turned on. If it gets colder, there is more condensation, then more water is going out. The sponge that exists around the sewer pipe, may have aged and no longer have the same characteristics. Therefore, it does not retain water, as it did and it enters the car. The tube addition solution is an airy solution to eliminate water contact with an aged sponge. There being no other damage, the problem seems to be solved.
It is inevitable that we have to recharge the AC. If I had known about these episodes before recharging the AC I would have done what I will suggest. Before having the AC recharged, increase the drain pipe outside. It may not be necessary, but by the yes, by the no ... It is better to prevent 🙂 You can even ask them to do this service when recharging the AC.
If you choose to do it at home, be careful that the tube does not touch the gear cables. At idle, with the vibration, can make noise (like tac, tac, tac,). Although it's nothing special, if you can help it, great.
To finish this episode, I still need to “dress” the interior of my Toyota IQ.
Two thanks. First, thank you very much for your posts, as they helped a lot. Second, thank you very much for the kindness and professionalism of Toyota, in Faro (Portugal).
Well there.
Nélson Brito