j051

AC Gurgling noise in IS300h

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Hi all, 

Long time forum reader finally registering for some advice. I drive an IS300h in Switzerland, it's a silver 2013 model just sitting at about 130k KM. 

Since I bought the car used in March 2019 I have noticed a gurgling noise coming from the AC system upon startup. It is definitely the AC as the noise goes away when I turn off the AC, and comes back when I turn it back on.

 

The noise always goes away after about 30-60 seconds after startup of the car and does not come back for the remainder of the drive. It comes back after I shut the car down, let it sit for a while and restart - at which point it will again only last 30-60 second before it goes away 

The AC is ice cold for as far as I can tell, it is definitely way colder than my previous Honda ever was. The noise is very similar, if not exactly the same, to what is shown in this video.

Anyone with a similar issue, or thoughts what it could be? I have considered it may be low on refrigerant, but as the air is so cold, not sure that could really be the case. My old honda did not cool properly when it was low on refrigerant. 

 

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i had the same thoughts as yourself, getting low on refrigerant

and if it is low just imagine how cold it will get when its been refilled

brrr brrr brrr

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Thanks, yeah I guess I will get it checked out. Nobody else on here who got their AC system refilled? Any symptoms or indications of when (mileage / age) it needed a refill?

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i am on my 3rd lexus since 2013 and have never had to have an aircon refill,

refilling will depend on usage, using the aircon on a regular basis is the

best practise to keep it in good working order , if its not used regulary

the seals can dry out and stick to the compressor shaft and when you turn the AC

on the seals can be damaged

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I had the compressor seal go at 40,000 miles 5 years. Replaced and refilled under extended warranty.

This was manifested as a hiss from the engine bay when a/c was on. It went away when all the gas had escaped.

Your gurgling sounds like you lost some gas but then the leak fixed itself.

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5 minutes ago, 200h said:

if its not used regulary

the seals can dry out and stick to the compressor shaft and when you turn the AC

on the seals can be damaged

Was there not some information here recently that states the compressors are submerged in some fluid, and so are not prone to drying / cracking seals?

Regardless, I leave mine mostly on. Just to stop the musky smell from developing!

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I indeed keep the AC on at all times, winter or summer. Had some issues with a musky smell when I bought the car, now this is mostly gone, probably also because I always try to disable the recirculated air setting. 

Thanks for your thoughts everyone, I'll stop by the dealers in the course of next week or so, and will let you know the outcome

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4 hours ago, j051 said:

Thanks, yeah I guess I will get it checked out. Nobody else on here who got their AC system refilled? Any symptoms or indications of when (mileage / age) it needed a refill?

I've had mine refilled once circa 105k miles when it was 11 years old. Car was left in the garage untouched for 12 months prior to that. Took it to Lexus, where it passed the pressure test prior to regassing, and never needed topping up in the two years that followed.

So I guess there is some truth to the aircon gas escaping if the system is not used for prolonged periods. Also, I read on here somewhere that the aircon gas used for hybrid Toyotas are different to ones used in normal aircon systems. As such, Toyota and Lexus dealers have a separate regassing machine for hybrids so as to not contaminate the system with ordinary refrigerant.

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