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Old 15th January 2019, 20:21   #16
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re: Corolla A/C Problem - Diagnosis, Solutions and Experiences

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Originally Posted by GRAND23 View Post
Will wait for more bhpians to post and then take a decision.
This is a low pressure part and Araldite can easily seal these holes with an overnight drying process. You can apply a coat of M Seal above it for additional safety if you wish to.

The other way of looking at it that the part has served the owner well for 13 yrs.

I would get it repaired.
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Old 16th January 2019, 04:27   #17
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re: Corolla A/C Problem - Diagnosis, Solutions and Experiences

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Originally Posted by GRAND23 View Post
The replacement is too costly.
Yes; these parts are generally expensive on any car. It cost about 5k for my previous car which was a Ford Ikon. The high price is due to the car being out of date.

Buy it from that supplier who quoted around 7k. It will do the job. Makes no sense to spend 34k on a air conditioning component and on a 14 year old car.

You could gamble with the solution Scorpian has suggested but it has to be done right.
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Old 28th September 2019, 20:57   #18
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re: Corolla A/C Problem - Diagnosis, Solutions and Experiences

Hello Team, I have a Toyota Corolla Altis 1.4 D4DG 2011, which I purchased last year with 100000 lakh km on the odometer. I have driven it for about 18000 km with no major problems, except the Air conditioner. It usually works just fine, but then it suddenly stops cooling almost completely. I have had the gas refilled at Sharayu Toyota Aurangabad, but still no change.

I took the car to the showroom three times where they kept her for 3 days each time, and each time returned her with the AC working, however this time they told me that they suspected major part failure in the AC system namely - the condensing coil, the expansion valve, the amplifier, all of which together will cost about Rs. 70000 to replace. Also, they suspect the AC clutch to have failed, which will also add to the cost.

Currently the AC is now working, I am not sure what is causing it to start and stop working suddenly.

I request you all to kindly advise if so many parts of the AC for a corolla can fail in about 8 years?

If no, then what alternative do I have to get the AC working again as I do not look forward to spending such a huge amount.

I look forward to your valuable suggestions, thank you.

Regards
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Old 28th September 2019, 23:35   #19
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re: Corolla A/C Problem - Diagnosis, Solutions and Experiences

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Originally Posted by pareekvirendra View Post
Hello Team, I have a Toyota Corolla Altis 1.4 D4DG 2011, which I purchased last year with 100000 lakh km on the odometer. I have driven it for about 18000 km with no major problems, except the Air conditioner. It usually works just fine, but then it suddenly stops cooling almost completely. I have had the gas refilled at Sharayu Toyota Aurangabad, but still no change. I took the car to the showroom three times where they kept her for 3 days each time, and each time returned her with the AC working, however this time they told me that they suspected major part failure in the AC system namely - the condensing coil, the expansion valve, the amplifier, all of which together will cost about Rs. 70000 to replace. Also, they suspect the AC clutch to have failed, which will also add to the cost.
No sure what the amplifier is but do they mean the compressor? I think there's some guess work going on

Quote:
Currently the AC is now working, I am not sure what is causing it to start and stop working suddenly.
Intermittent failures could be electrical in nature. For e.g. in the AC clutch.

Quote:
I request you all to kindly advise if so many parts of the AC for a corolla can fail in about 8 years?
How many can fail and do fail depends on how that car was maintained especially given the running of over 100K kms. Hope you checked the service history before purchase.

Quote:
If no, then what alternative do I have to get the AC working again as I do not look forward to spending such a huge amount.
You need to get a second opinion. Go to another Toyota dealer or a specialist recommended AC technician in your city.
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Old 29th September 2019, 09:07   #20
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re: Corolla A/C Problem - Diagnosis, Solutions and Experiences

Quote:
Originally Posted by pareekvirendra View Post
Hello Team, I have a Toyota Corolla Altis 1.4 D4DG 2011. It usually works just fine, but then it suddenly stops cooling almost completely.
I request you all to kindly advise if so many parts of the AC for a corolla can fail in about 8 years?
The AC stops cooling suddenly because the compressor clutch coil is getting weak. As it gets hot, it loses its capacity to energise, act as a magnet and engage the compressor.

This happens due to age, and reckless use of the AC at low temperature settings in its initial years.

All the dealers are infamous for recommending a complete replacement; that's all they know. It's not their money that is being spent.

I can suggest a workaround - run the AC at 2 degrees below outside temperature and see.

Example : if the outside temperature is 29 deg.C run the AC at 27 , if outside is at 37, run the ACat 30(which is the max set temperature the ac would allow).

OR

change the compressor clutch coil.
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Old 29th September 2019, 09:31   #21
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re: Corolla A/C Problem - Diagnosis, Solutions and Experiences

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Originally Posted by vigsom View Post
The AC stops cooling suddenly because the compressor clutch coil is getting weak. As it gets hot, it loses its capacity to energise, act as a magnet and engage the compressor.
Hello,

I think you are absolutely right, because I think I have noticed the AC working fine early in the morning or late at night when the temperatures are low. This makes much more sense than what the showroom guys said. It's also in line with what R2D2 said in the previous comment. Thank you so much for your help. I will check this today and tomorrow and update the status here.

Thanks a tonne for your help.

Last edited by ampere : 29th September 2019 at 10:06. Reason: Compacted quoted post
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Old 6th October 2019, 10:04   #22
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re: Corolla A/C Problem - Diagnosis, Solutions and Experiences

Hi, I am sorry to post a separate reply instead of editing the previous answer, but I couldn't figure out how to edit, I didn't see any option to edit.

Quote:
Originally Posted by R2D2 View Post
No sure what the amplifier is but do they mean the compressor? I think there's some guess work going on

Intermittent failures could be electrical in nature. For e.g. in the AC clutch.

How many can fail and do fail depends on how that car was maintained especially given the running of over 100K kms. Hope you checked the service history before purchase.

You need to get a second opinion. Go to another Toyota dealer or a specialist recommended AC technician in your city.
I agree with you, I too think the problem is electric, rather than all these parts failing, because on the days that the AC is working, it works quite well. However, I am new to Aurangabad City, and not sure where to get this checked out, except Toyota Service Centre. They had the car three times for three days each, and if they are still guessing, then this reflects rather poorly on their skills. Also, I did get the car's history checked before purchase, and they told me the car had had no issues in the past.

Quote:
Originally Posted by vigsom View Post
The AC stops cooling suddenly because the compressor clutch coil is getting weak. As it gets hot, it loses its capacity to energise, act as a magnet and engage the compressor.

This happens due to age, and reckless use of the AC at low temperature settings in its initial years.

All the dealers are infamous for recommending a complete replacement; that's all they know. It's not their money that is being spent.
I tested the car for the whole past week, for the first two days the AC didn't work, but the remaining days it worked rather fine, and chilled the cabin nicely even if the outside temperature was around 37 degrees or so.

I called the showroom associate and he said that the AC clutch costs Rs. 40000. Did you mean the AC clutch or just the AC clutch coil? Are these two different parts? I really couldn't tell. And if I do propose to get these from outside, what brand or company should I consider? I have heard DENSO is good.

I am going to Nashik City next week and may get the car checked there, and the parts replaced there if need be.

Also, off-topic, this time I learned how to multi quote, so I can thank both the people who took the time out to help me earlier.

Thank you for your help.
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Old 6th October 2019, 19:41   #23
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re: Corolla A/C Problem - Diagnosis, Solutions and Experiences

Quote:
Originally Posted by pareekvirendra View Post
I tested the car for the whole past week, for the first two days the AC didn't work, but the remaining days it worked rather fine, and chilled the cabin nicely even if the outside temperature was around 37 degrees or so.
If the compressor was shot and gas pressure low, or there was a leak, you wouldn't experience sufficient cooling. Those parts seem to be fine but they need to be tested on both high and low pressure sides of the circuit.

Quote:
And if I do propose to get these from outside, what brand or company should I consider? I have heard DENSO is good.
Denso is the OEM supplier to Toyota worldwide and is the part of choice.

Quote:
I am going to Nashik City next week and may get the car checked there, and the parts replaced there if need be.
Intermittent problems usually aren't serious. So, as I mentioned before please get a second opinion. Take it to a good AC tech specialist or even a Toyota dealer in Nashik.
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