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Originally Posted by Col Mehta The AC on our car trips and makes that hissingnoise as long as you increase the RPMs, even when the car is standing still. It would do just fine if you don't accelerate but the moment you put your foot on the A pedal and push RPMs, the AC would start tripping along with the noise, regardless of car moving or not. Per Hyundai, this is how the car is designed (for unknown reasons). Though the AC hasn't stopped working post out last visit, the tripping and hissing noise (issue, if we can call it) is still pretty much present.
Since we also own Creta diesel (auto), we did check it for the similar characteristics but found none. So I'm assuming the issue is only with Grand i10 and Xcents. |
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Originally Posted by Col Mehta Our less than two-year old Grand i10 Asta (O) petrol has had its share of niggles and issues but two of them always gave us headache.
The other issue was with the AC tripping and making some weird hissing noise. On two different occasions, the AC had stopped working on its own and could only work post restarting the car!
So, after repeated visits to HASS, my son who drives the car, decided to write to Hyundai again and this time, he was very stern and demanded Hyundai to own the issues and have them fixed. After a few days time, Hyundai regional office in Delhi responded and requested us to bring the car to Deep Hyundai again for allowing them to have another look at the car and get it fixed. Deep Hyundai, Peeragarhi, New Delhi has been servicing our car but failed to fix the reported issues (basically, they gave us some real hard times with regards to these two issues - long story and rant - for some other time).
Today, we took the car to Deep Hyundai service center, Mangolpuri, New Delhi (another workshop managed by Deep Hyundai) and one of their service GMs was already waiting for us to check the issues. He promptly got into the action and immediately acknowledged clutch hardness and juddering. He asked one of their senior technicians to check the clutch and told him to do the needful. Next was the AC tripping and making that hissing noise. He called for his trusted AC technician who checked it and confirmed that the issue is standard in all Grand i10s and Xcents (yes, that's right as they offered us to check it on the other Grand i10 which we did and found the same noise in two different cars). According to them, the AC is being designed in this manner but had no idea about the reason. Anyway, we could have done nothing since the issue (or feature as Hyundai likes to call it ). So, it came down to why AC stopped working on couple of occasions to which they suspected AC thermostat to be the culprit. So we left the car there and they were kind enough to give my son a loaner car (a Hyundai i10). By evening time, they informed us the car had been fixed and they had to replace certain clutch parts and AC thermostat. Now, the car is back and the changes are very much prominent. The clutch is super smooth with no tak-tak noise, no juddering and no other weird noises. Feels as good as new! We so wish Hyundai had taken care of it earlier. The AC's hissing noise is still present, which I guess is normal but we are hoping that the tripping issue wouldn't come back. They have done their part, apparently.
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Even I have been having similar problems with my 3 and half year old Grand i10 asta Crdi. The hissing noise from ac was present since almost 1 and half years but it used to go after regular car service at HASS. But over the last 6 months the HVAC used to regularly lose the cooling power as well as the air flow from the ac vents after using it for some half an hour. It used to become normal if I switch off the ac for about five minutes or so. I had shown it to HASS in Mysore (Star Hyundai) on two occasions and they were not able to pinpoint the cause. They were of the opinion they might have to open the dashboard to 'investigate' which is almost 5 to 6k worth of HASS labour charges plus charges for anything that they replace. So I defered it for the time being and was using the ac by intermittently switching it on and off. During this time I also noticed that sometimes ice particles were coming out of the ac vents. I even had made multiple road trips during this time and was somehow managing with the faulty ac.
Due to my academic commitments I was posted in Bangalore for three months and my car had reached the 60k mark. Just the day before I was going to take it to service I hit a pothole following which the car was making a lot of noise whenever I was driving in 1st and 2nd gear. The noise used to progressively come down in the following gears.
I anyways took the car to Blue Hyundai, Rajajinagar, Bengaluru for the 60k service, the sound from the car post hitting the pot hole and the ac issues.
The sound from car was diagnosed to be a bent radiator fan support frame which was touching the engine and thus the noise.
60k service was done i.e. the fluid changes etc. The ac issues according to the SA was due to refrigerant (r143a) leakage from the system. I asked him where could the possible leakage be from for which he did not have a conclusive reply. He told he can replace the hose pipes and certain other items and see whether it works normally or no. He also quoted 12k plus labour charges for the same. I did not want to get it repaired there because it was not a conclusive diagnosis and the rates quoted were exorbitant. I was not convinced either. I asked him to to refill the gas as a temporary solution.
Right after the service the noise due to the bent support frame had gone and the ac was chilling the cabin well. But there was a new problem that I noticed. There was this really 'oily' kind of a smell that used to emanate from the ac vents whenever I switched on the ac but the cooling was effective nor was there any tripping of the ac. I was happy for a few days which was short lived. I had not driven the car for a few days due to certain commitments in my hometown. When I returned back and switched on the ac there was absolutely no cooling and the oily smell which was there before had increased even more.
I did a quick search in Team-Bhp for independent garages whose core competency is in ac repair. I found that there is this place called Aditya A/c in Rajaji nagar. Incidentally it is located right opposite to Blue Hyundai Rajajinagar where I had got my 60k service and radiator frame replacement from.
The SA+mechanic+all-in-all of the garage switched on my car, connected the gauge for checking the refrigerant pressure and found out that the refrigerant is absolutely zero in the system which was a no brainer. I told him about the smell that emanates from ac vents. He immediately sat inside my car and had a good sniff of the smell. He immediately made a diagnosis of a busted evaporator coil. He told me that it's a common issue among the newer Hyundais, more commonly for the Verna and i20s. He showed me a few examples for other busted evaporator coils from other cars he has previously worked on. I was somehow convinced with his diagnosis(my gut feeling said so).
He quoted a price of 10k inclusive of all labour charges and he told he will be using original Hyundai spare part ( he showed me other examples of evaporator coils that he had changed in other Hyundais-had the Hyundai label and all). I agreed on the price and he started removing the dashboard piece by piece. Over a period of about five to six hours he replaced the evaporator coil and refilled the refrigerant.
I have driven the car for a week post the repair. Ac seems to be working fine. No odd smells/ no hissing noise/ No tripping.The ac is also chilling the cabin pretty good. Touchwood.
I am hoping that the issue doesn't recur again. What I have come to understand with this whole grand i10 ac fiasco is the inherent design of the ac (read the evaporator coil and other parts) is at fault which makes the ac fail after about two to three years.
Hope Hyundai notes this and makes the required changes in their future cars. I also wish the HASS are more competent in correctly finding the fault behind various problems that our cars have got and rectifying these issues apart from just doing the regular Oli change and car wash.
Regards
Fazonater1911
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Originally Posted by nsbhagwat Fazonater, my absolute bad here. Has the problem been rectified? I will be visiting the service center tomorrow. If the issue is not rectified I can check with them about the problem.
Regards
Nikhil |
Sir I have got it rectified atlast. I have written the details in my previous post.
Thank you.