I have read about this in the past, saw some videos but i let it go due some other matters that i had to take care. In the past i have used some other methods as foam inside the airways and a spray inside the cabin

https://www.sonax.com.au/cdn/shop/files/action.jpg?v=1652248204&width=720

with a/c on and the recycle air button in On position. Few years ago i went to a repair-shop to open the a/c from the front (engine bay) and give a thoroughly cleaning of the evaporator.

Few weeks ago i remember the Dettol it and i had the thought to give it a try.

I have found in my cabinet a spare (non used) extra-long plastic nozzle

which was for an a/c cleaning foam spray and surprisingly it fitted perfect in the Dettol can

so i use it as we usually do with the other a/c sprays.

https://www.moje-auto.pl/wp-content/uploads/2024/10/19-535_MOJE_AUTO_-_Nano_Preparat_do_Czyszczenia_Klimatyzacji_200ml_12_670f6ece974c6-650x434.jpg

I laso found anothe plastic nozzle from WD-40 type sprays, remove the dettol's one and fit it.

Worked perfect, no leaks and i spay some inside the air vents.

like this:

https://shop.errecom.com/wp-content/uploads/2019/07/AB1084_Evaporator_Cleaner_ambientata_1500x1500_AUTO.jpg

https://pbs.twimg.com/media/EHci4glWoAE5MHo.jpg

Next is inside air air cabin filter case.

Here it is:

As i have seen here:

https://i.ytimg.com/vi/myktSWWjp88/hq720.jpg

which i find it better than this way:

https://autoservice-lepidas.gr/wp-content/uploads/2023/07/acdisinf-775x517.jpg

I have to admit that the ''pharmaceutical'' smell of Dettol is present for the next days and that was not very pleasant.

Although the Orchard Blossom is more pleasant.

On the other hand in Arabia were the use of a/c is a ''must"

https://www.dettolarabia.com/common-infections/home-hygiene/how-to-clean-an-air-conditioner/

😎

If your evaporator starts leaking, you'll know the reason.

Aluminium isn't the most corrosion resistant material out there, so I'd be careful using anything but A/C cleaners.

6 hours ago, Papez said:

If your evaporator starts leaking, you'll know the reason.

so I'd be careful using anything but A/C cleaners.

Οh my God,thank you for the notice!

Even a small amount od Dettol insise the air vent (interior) can hurt something else e.g. plastics?

Except the notice from the label about metal corrosion i also found this notification from another user:

''Do not use on non-stainless steel, aluminum, silver, or chipped enamel''.

Also beware you don't damage the evap interior temperature sensor with the spray (been there done that on a Fabia)

13 hours ago, skomaz said:

Also beware you don't damage the evap interior temperature sensor with the spray (been there done that on a Fabia)

With the a/c spray you damage it?

23 minutes ago, D.FYLAKTOS said:

With the a/c spray you damage it?

Yes I did the same as you on a Fabia, spraying through the access for the pollen filter and the following day the A/C stopped because the sensor had failed

Oh no, so since a ''dedicated'' a/c spary can do some damage what are our options?

Not sure - I may just have been unlucky and might have sprayed directly onto the sensor...

So it's ''safer'' the inside the cabin-continious opened spray-air recycle ON and wait till all the content of the spray circulated method?