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TSwkchee95
post May 25 2022, 10:29 AM, updated 4y ago

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My myvi car aircond not blowing cold air. After checking in automotive workshop, need to replacement cooling coil, walve, condenser, compressor and quote Rm2000, is it a normal price?
@r3|4^2
post May 25 2022, 10:44 AM

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usually compressor still can use; that thing quite hard to rosak. I suggest u better go and check at other workshop la. Like my case, once this guy asked rm800 to replace compressor / hose / etc. Next i went to Sato, just refill gas and replace some hose, <rm100 only.
Chrix
post May 25 2022, 10:45 AM

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which model myvi? my guess its first gen?

im not sure "normal price" as parts can come from both ori, recond.

you may get a 2nd opinion from well known shop Hinly in PJ.
abubin
post May 25 2022, 10:45 AM

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Complete replacement would only means black oil issue. If really is black oil then yes. The only way to fix is to replace whole AC system. You cannot replace part by part as the black oil is like a virus. As long as the virus remain in the system, it will continue to spread to other system if you only replace one part.

Price is about right at around 2k depending on parts you get. Used, oem, ori and so on.

Most workshops will recommend changing to more power compressor (Alza) but you should stick with original or oem myvi compressor. Bigger compressor will means higher FC and more work for the engine.

Good luck.
ctys2012
post May 25 2022, 10:46 AM

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seems like u got into a black shop... they will dismantle everything and tell u the price to fix... please go other shops to check...
TSwkchee95
post May 25 2022, 11:00 AM

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Thanks for everyone advice, mine one is first gen myvi, I do went to another workshops, some shops said its only compressor & condenser issue and quote me around 1600+.

My usual go shop said mostly due to cooling coil issue, because the external valve have many dust and it went black, the compressor is about to burn too (but not the main issue) and suggest me to change cooling coil for RM1000. After change the cooling coil, normally issue will be resolved. But the compressor not sure can last for how long. So if change with new compressor + new condenser + cooling coio + valve is about RM2000.
Noryume
post May 25 2022, 11:01 AM

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QUOTE(abubin @ May 25 2022, 10:45 AM)
Complete replacement would only means black oil issue. If really is black oil then yes. The only way to fix is to replace whole AC system. You cannot replace part by part as the black oil is like a virus. As long as the virus remain in the system, it will continue to spread to other system if you only replace one part.

Price is about right at around 2k depending on parts you get. Used, oem, ori and so on.

Most workshops will recommend changing to more power compressor (Alza) but you should stick with original or oem myvi compressor. Bigger compressor will means higher FC and more work for the engine.

Good luck.
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What is black oil issue?
littlefire
post May 25 2022, 12:16 PM

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QUOTE(Noryume @ May 25 2022, 12:01 PM)
What is black oil issue?
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Means the A/C compressor oil totally kaput.. A lot of people until today still did not knew that A/C system got compressor oil (Google PAG46/100 oil) circulating with the gas around the system and need to be flush/service time to time (At least every 2 years or 40k). The compressor oil is the 1 help lubricating the A/C compressor, when new the oil usually is light yellow/green/transparent depending on type/brand. Once too long neglected, gg compressor oil (turn black) = gg A/C compressor = gg whole A/C system as debris or dirty stuff will travel the whole A/C system and hard to clean it manually. So most A/C repairer see this condition, will recommend complete change.. laugh.gif

This post has been edited by littlefire: May 25 2022, 12:18 PM
ktek
post May 25 2022, 12:22 PM

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QUOTE(abubin @ May 25 2022, 10:45 AM)
Complete replacement would only means black oil issue. If really is black oil then yes. The only way to fix is to replace whole AC system. You cannot replace part by part as the black oil is like a virus. As long as the virus remain in the system, it will continue to spread to other system if you only replace one part.
Price is about right at around 2k depending on parts you get. Used, oem, ori and so on.
Most workshops will recommend changing to more power compressor (Alza) but you should stick with original or oem myvi compressor. Bigger compressor will means higher FC and more work for the engine.
Good luck.
*
need vaccin for it

QUOTE(littlefire @ May 25 2022, 12:16 PM)
Means the A/C compressor oil totally kaput.. A lot of people until today still did not knew that A/C system got compressor oil (Google PAG46/100 oil) circulating with the gas around the system and need to be flush/service time to time (At least every 2 years or 40k). The compressor oil is the 1 help lubricating the A/C compressor, when new the oil usually is light yellow/green/transparent depending on type/brand. Once too long neglected, gg compressor oil (turn black) = gg A/C compressor = gg whole A/C system as debris or dirty stuff will travel the whole A/C system and hard to clean it manually. So most A/C repairer see this condition, will recommend complete change..  laugh.gif
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oil is flow along with freon gas rite
abubin
post May 25 2022, 01:37 PM

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QUOTE(littlefire @ May 25 2022, 12:16 PM)
Means the A/C compressor oil totally kaput.. A lot of people until today still did not knew that A/C system got compressor oil (Google PAG46/100 oil) circulating with the gas around the system and need to be flush/service time to time (At least every 2 years or 40k). The compressor oil is the 1 help lubricating the A/C compressor, when new the oil usually is light yellow/green/transparent depending on type/brand. Once too long neglected, gg compressor oil (turn black) = gg A/C compressor = gg whole A/C system as debris or dirty stuff will travel the whole A/C system and hard to clean it manually. So most A/C repairer see this condition, will recommend complete change..  laugh.gif
*
Also to note, myvi first gen (aka old myvi) is notorious for black oil issue. The reason is still unknown but usually cause didn't go through proper service intervals.

Be also very careful and ask the pomen proper questions. A lot of AC workshops will say to just change one part and save cost. I am not sure whether they don't know about black oil issue or just want you to keep going back to them for business. Regardless what they say, to be safe I would recommend to change complete system. Unless the pomen can confirm it's not black oil and will warranty on the fix. Cause if really black oil, changing only 1 part will solve the issue only for few months.
WaCKy-Angel
post May 25 2022, 01:42 PM

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QUOTE(wkchee95 @ May 25 2022, 10:29 AM)
My myvi car aircond not blowing cold air. After checking in automotive workshop, need to replacement cooling coil, walve, condenser, compressor and quote Rm2000, is it a normal price?
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WaCKy-Angel
post May 25 2022, 01:47 PM

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QUOTE(abubin @ May 25 2022, 01:37 PM)
Also to note, myvi first gen (aka old myvi) is notorious for black oil issue. The reason is still unknown but usually cause didn't go through proper service intervals.

Be also very careful and ask the pomen proper questions. A lot of AC workshops will say to just change one part and save cost. I am not sure whether they don't know about black oil issue or just want you to keep going back to them for business. Regardless what they say, to be safe I would recommend to change complete system. Unless the pomen can confirm it's not black oil and will warranty on the fix. Cause if really black oil, changing only 1 part will solve the issue only for few months.
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My car also black oil (not myvi king) and pomen macam saying something like change whole set but after done i look at the piping still looks same (dirty).
Pomen also mentioned dont recomend to do flushing instead change whole set but bill listed flushing too. So im wondering if change whole set does it need flushing or i got scammed?

What is the part called anyway?

The bill listed was condensor and compressor.
netmatrix
post May 25 2022, 02:47 PM

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The 1st gen myvi i am driving also blew non cold air few months ago. My problem was cooling coil leak. That has to be replaced. They also serviced the blower fan, replaced the cabin filter, changed gas. All in is RM700.

Many years ago i got the same car AC serviced because the AC was blowing foggy air instead of clean air. The AC is just averagely cold. That time they replaced a corroded pipe, a valve, clean up cabin blower, clean condenser, change compressor oil and gas. All in was RM1000.

The reason it did not breach RM1000 is because i did not change the radiator fan motor and radiator plastic housing. That was highly recommended, but i skipped it. End up 2 months later, have to pay another RM 600 just to change those when the car was over heating....
abubin
post May 25 2022, 05:04 PM

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QUOTE(WaCKy-Angel @ May 25 2022, 01:47 PM)
My car also black oil (not myvi king) and pomen macam saying something like change whole set but after done i look at the piping still looks same (dirty).
Pomen also mentioned dont recomend to do flushing instead change whole set but bill listed flushing too. So im wondering if change whole set does it need flushing or i got scammed?

What is the part called anyway?

The bill listed was condensor and compressor.
*
What your mechanic means when not doing flushing only is just servicing the AC by changing the oil and gas. No changing of parts. When you change parts, you will need to refill the oil and gas. Not really flushing but adding. Still costs involved in terms of that.

As for changing complete set of AC, it really depends on the communications. Some pomen will mean changing EVERYTHING but some only means changing few parts only. This really need to be listed out properly and agreed on before work commence. Things like expansion valves and drier filter are parts that must be changed and sometimes not communicated but then suddenly kena charged. For black oil, you can either change the pipings or chemical wash them. Still something extra.
Zot
post May 25 2022, 05:06 PM

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QUOTE(wkchee95 @ May 25 2022, 10:29 AM)
My myvi car aircond not blowing cold air. After checking in automotive workshop, need to replacement cooling coil, walve, condenser, compressor and quote Rm2000, is it a normal price?
*
What the heck replacing everything!

That is lazy workshop that does not want to find which part is faulty. Go to other workshop
Zot
post May 25 2022, 05:09 PM

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QUOTE(littlefire @ May 25 2022, 12:16 PM)
Means the A/C compressor oil totally kaput.. A lot of people until today still did not knew that A/C system got compressor oil (Google PAG46/100 oil) circulating with the gas around the system and need to be flush/service time to time (At least every 2 years or 40k). The compressor oil is the 1 help lubricating the A/C compressor, when new the oil usually is light yellow/green/transparent depending on type/brand. Once too long neglected, gg compressor oil (turn black) = gg A/C compressor = gg whole A/C system as debris or dirty stuff will travel the whole A/C system and hard to clean it manually. So most A/C repairer see this condition, will recommend complete change..  laugh.gif
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Easy job. More profit. That is the business target
WaCKy-Angel
post May 25 2022, 05:20 PM

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QUOTE(abubin @ May 25 2022, 05:04 PM)
What your mechanic means when not doing flushing only is just servicing the AC by changing the oil and gas. No changing of parts. When you change parts, you will need to refill the oil and gas. Not really flushing but adding. Still costs involved in terms of that.

As for changing complete set of AC, it really depends on the communications. Some pomen will mean changing EVERYTHING but some only means changing few parts only. This really need to be listed out properly and agreed on before work commence. Things like expansion valves and drier filter are parts that must be changed and sometimes not communicated but then suddenly kena charged. For black oil, you can either change the pipings or chemical wash them. Still something extra.
*
This is the bill

Labour for checking, remove & change compressor & condensor RM180
Flushing with nitrogen & chemical solvent RM80
Compressor Denso RM1500
Condensor Denso RM520
Coolant RM40
Refill gas, vacuum + oik R134A

Should be more details breakdown?

So chemical wash is another term for flushing right?
megahertz
post May 25 2022, 05:26 PM

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what if the aircond only not cold when stuck at traffic jam or idle but cold when moving.
is because less gas ? fan blower not hard enough ? or relay is not good enough to kick in compressor when temp is hot ?
littlefire
post May 25 2022, 06:39 PM

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QUOTE(megahertz @ May 25 2022, 06:26 PM)
what if the aircond only not cold when stuck at traffic jam or idle  but cold when moving.
is because less gas ? fan blower not hard enough ? or relay is not good enough to kick in compressor when temp is hot ?
*
To answer your question, we are not actual mechanic or A/C specialist. Please go to a proper workshop to check it out.

Can be from a lot of reasons

- Low gas
- Fan not moving or getting slow
- Compressor is going to fail
abubin
post May 25 2022, 06:44 PM

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QUOTE(WaCKy-Angel @ May 25 2022, 05:20 PM)
This is the bill

Labour for checking, remove & change compressor & condensor RM180
Flushing with nitrogen & chemical solvent RM80
Compressor Denso RM1500
Condensor Denso RM520
Coolant RM40
Refill gas, vacuum + oik R134A

Should be more details breakdown?

So chemical wash is another term for flushing right?
*
Yes, that is chemical wash of the pipes and things didn't change.

Strange didn't show listing of expansion valve and filter drier. Maybe the pomen lump into other parts.

Also how come cooling coil didn't change? Lazy to change cause it's too much work? The issue will come back in less than 1 year. My car didn't fix properly and the AC issue already start showing. But it's already 2 years. Now using until it not cold anymore. Then change whole set.
zuozi
post May 25 2022, 07:21 PM

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QUOTE(wkchee95 @ May 25 2022, 10:29 AM)
My myvi car aircond not blowing cold air. After checking in automotive workshop, need to replacement cooling coil, walve, condenser, compressor and quote Rm2000, is it a normal price?
*
Before all this inflation denso compressor RM 800 denso cooling coil RM 280 cool gear condenser RM 120 from dealer price original equipment price very tough

Gas refill RM 100 , dashboard remover RM 150 labour or depends on workshop

Thing not included if your high pressure and low pressure hose leaking or not if both RM 150

Vavle is not included denso RM 65

So you kira kira that the price in between

Unless everything you go for cool gear except compressor only option are denso

If you want best effect on cooling upgrade your radiator fan to lagi best variant which is the 1.5 litres engine variant if your already 1.5 litres engine variant the fan can just ignore it which also whole set cost RM 150

Try not to buy over online if you have no experience usually original equipment do have thicker material compare to 3rd party if you found online seller cheaper price they simply just put denso but the equipment itself not a denso or coolgear

my 11 year old working on field vehicle myvi daily travel at least 150km here and there now mostly yearly will doing compressor flush plus replace dryer for RM 200 due to mostly on field use even yearly flush I can still seeing significant grey residue possible overheating and wear and tear nothing to blame just hope can last longer haha

If you only use for daily go and back is okay go for cool gear except compressor without choice since all reconditioned compressor really depends on luck some after 3 months warranty started to failed then need to doing flush all over again or replaced whole set again so is a waste of money
Noryume
post May 25 2022, 07:31 PM

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QUOTE(littlefire @ May 25 2022, 12:16 PM)
Means the A/C compressor oil totally kaput.. A lot of people until today still did not knew that A/C system got compressor oil (Google PAG46/100 oil) circulating with the gas around the system and need to be flush/service time to time (At least every 2 years or 40k). The compressor oil is the 1 help lubricating the A/C compressor, when new the oil usually is light yellow/green/transparent depending on type/brand. Once too long neglected, gg compressor oil (turn black) = gg A/C compressor = gg whole A/C system as debris or dirty stuff will travel the whole A/C system and hard to clean it manually. So most A/C repairer see this condition, will recommend complete change..  laugh.gif
*
Normal operation those oil will not mix with the gas. Noted oil leakage into the gas system.

QUOTE(megahertz @ May 25 2022, 05:26 PM)
what if the aircond only not cold when stuck at traffic jam or idle  but cold when moving.
is because less gas ? fan blower not hard enough ? or relay is not good enough to kick in compressor when temp is hot ?
*
Many reason. Your car not moving, outside air not helping cooling the car. System not cool enough - need to check gas pressure. If gas ok, need to check fan and compressor.
zuozi
post May 25 2022, 07:39 PM

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QUOTE(Noryume @ May 25 2022, 11:01 AM)
What is black oil issue?
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Usually refrigerant light yellow ish color then some with green ish dye color for leak check if leaking

If compressor overheating causing from condenser not fast enough eject heat or engine bay too much heat or the weather too hot both senario also causing overheating that the refrigerant above boiling point no longer proper lubricant the compressor starting scratching metal then slowly all this metal residue go through cooling coil and condenser then slowly dryer like a filter become sludged black lost the ability to trap residue more and more residue back to compressor
Which giving compressor faster failure

Even now yearly I do flush my AC plus dryer replacement still can seeing significant grey on dryer like 20%
zuozi
post May 25 2022, 07:51 PM

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QUOTE(netmatrix @ May 25 2022, 02:47 PM)
The 1st gen myvi i am driving also blew non cold air few months ago. My problem was cooling coil leak. That has to be replaced. They also serviced the blower fan, replaced the cabin filter, changed gas. All in is RM700.

Many years ago i got the same car AC serviced because the AC was blowing foggy air instead of clean air. The AC is just averagely cold. That time they replaced a corroded pipe, a valve, clean up cabin blower, clean condenser, change compressor oil and gas. All in was RM1000.

The reason it did not breach RM1000 is because i did not change the radiator fan motor and radiator plastic housing. That was highly recommended, but i skipped it. End up 2 months later, have to pay another RM 600 just to change those when the car was over heating....
*
My first gen stock compressor last me 8 year haha after that replace whole fan and bracket replace the lagi best 1.5 litres variant after that not much issue no matter how hot the weather still blowing cold air

Just yearly will doing vacuum and dryer replacement not sure is this considered flush or not I guess not haha

Yearly dryer replacement still can seeing significant grey residue trap on dryer maybe climate change is the one to blame more and more equipment failed too easily 😂
zuozi
post May 25 2022, 07:54 PM

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QUOTE(WaCKy-Angel @ May 25 2022, 05:20 PM)
This is the bill

Labour for checking, remove & change compressor & condensor RM180
Flushing with nitrogen & chemical solvent RM80
Compressor Denso RM1500
Condensor Denso RM520
Coolant RM40
Refill gas, vacuum + oik R134A

Should be more details breakdown?

So chemical wash is another term for flushing right?
*
The chemical part are flushing the the high and low pressure hose
Since compressor coil and condenser are new item if they go and flush it go and sue them hahaha

Edit ops sorry didn't know cooling coil is not included

This post has been edited by zuozi: May 25 2022, 07:56 PM
WaCKy-Angel
post May 25 2022, 08:09 PM

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QUOTE(abubin @ May 25 2022, 06:44 PM)
Yes, that is chemical wash of the pipes and things didn't change.

Strange didn't show listing of expansion valve and filter drier. Maybe the pomen lump into other parts.

Also how come cooling coil didn't change? Lazy to change cause it's too much work? The issue will come back in less than 1 year. My car didn't fix properly and the AC issue already start showing. But it's already 2 years. Now using until it not cold anymore. Then change whole set.
*
The aircond died suddenly while driving. Only hot air.
Pomen said compressor died.
And gas also turned black.

In fact im the one asked is it need to do flushing to clean the black oil and the answer was "no point do flushing somemore if flushing not properly may cause leaking"

Thats why im surprised billed for flushing. And surprised the pipes not changed coz i clearly heard pomen said need to change whole set due to black oil.
Pomen got simply point "nah changed set" and i have no idea what exactly "set" is..
I only know for sure compressor was changed. Condensor not sure cot cant see it

This post has been edited by WaCKy-Angel: May 25 2022, 08:11 PM
teslaman
post May 25 2022, 08:11 PM

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QUOTE(wkchee95 @ May 25 2022, 10:29 AM)
My myvi car aircond not blowing cold air. After checking in automotive workshop, need to replacement cooling coil, walve, condenser, compressor and quote Rm2000, is it a normal price?
*
Just change condenser + topup gas - RM600 all inclusive

RM2k is normal for everything.
netmatrix
post May 25 2022, 09:05 PM

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QUOTE(zuozi @ May 25 2022, 07:51 PM)
My first gen stock compressor last me 8 year haha after that replace whole fan and bracket replace the lagi best 1.5 litres variant after that not much issue no matter how hot the weather still blowing cold air

Just yearly will doing vacuum and dryer replacement not sure is this considered flush or not I guess not haha

Yearly dryer replacement still can seeing significant grey residue trap on dryer maybe climate change is the one to blame more and more equipment failed too easily 😂
*
Yeah. I heard people upgrade to the bigger fan motor from newer unit. They also have a shroud that covers the compressor so engine heat will not heat up the compressor. The dryer is common problem that is not serviced. That time 10 years not serviced at all!!!! Thats why the air that blew out is foggy like smoke. laugh.gif I think i might service it annually or 2 years once. The last service i did was like 5 years ago. Only recently few months the coil leaked and can smell some kind of chemical smell in the cabin. rclxub.gif
mushigen
post May 25 2022, 09:27 PM

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QUOTE(abubin @ May 25 2022, 06:44 PM)
Yes, that is chemical wash of the pipes and things didn't change.

Strange didn't show listing of expansion valve and filter drier. Maybe the pomen lump into other parts.

Also how come cooling coil didn't change? Lazy to change cause it's too much work? The issue will come back in less than 1 year. My car didn't fix properly and the AC issue already start showing. But it's already 2 years. Now using until it not cold anymore. Then change whole set.
*
Appreciate if you could advise me.

Honda City is coming to 4 years soon, mileage < 30k km. I know aircon compressor needs clean oil but have always been reluctant to meddle with the system due to kena brainwashed - car aircon, if no problem don't touch it.

Is changing compressor oil a straightforward job? I'm most worried about the pomen not knowing the exact oil and refrigerant volumes required, main hentam jer.
zuozi
post May 25 2022, 10:11 PM

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QUOTE(mushigen @ May 25 2022, 09:27 PM)
Appreciate if you could advise me.

Honda City is coming to 4 years soon, mileage < 30k km. I know aircon compressor needs clean oil but have always been reluctant to meddle with the system due to kena brainwashed - car aircon, if no problem don't touch it.

Is changing compressor oil a straightforward job? I'm most worried about the pomen not knowing the exact oil and refrigerant volumes required, main hentam jer.
*
30k km for 4 year wow only go wet market and balik kampung use?

Well most ac guy checking pressure and refrigerant volume during refill they have no proper measurements other than that aka experience agak agak hahaha

So far as I know if you done any disassemble from stock the AC seem like more issue than before , if your AC still blowing cold air without weirdo smell stick with it usually can last 8 year minimum

I guess only manufacture vehicle assembly have a proper measurements how much refrigerant volume needed

Last time house got waja never service before 8 year later coil leaking during disassemble no sign of grey residue at all

Then my working vehicle myvi gen 1 stock AC also last 8 year due to magnet clutch failure during replacement no sign of grey residue too only replace condenser dryer and compressor , but the workshop recommend me drain the old refrigerant and dryer replacement yearly can improve liability for the compressor , after that 2nd year i go visit the workshop during refrigerant drain and dryer replacement can see a grey residue significant compare to stock

So this is made me wonder all the workshop AC guy only base on experience too much refrigerant too much work for compressor too less oil leading more wear and tear never done in service center maybe my other vehicle should give it a try on service center see if the compressor can as good as stock

For now if your AC have no issue stick with it first 😆
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post May 25 2022, 10:27 PM

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QUOTE(zuozi @ May 25 2022, 10:11 PM)
30k km for 4 year wow only go wet market and balik kampung use?

Well most ac guy checking pressure and refrigerant volume during refill they have no proper measurements other than that aka experience agak agak hahaha

So far as I know if you done any disassemble from stock the AC seem like more issue than before , if your AC still blowing cold air without weirdo smell stick with it usually can last 8 year minimum

I guess only manufacture vehicle assembly have a proper measurements how much refrigerant volume needed

Last time house got waja never service before 8 year later coil leaking during disassemble no sign of grey residue at all

Then my working vehicle myvi gen 1 stock AC also last 8 year due to magnet clutch failure during replacement no sign of grey residue too only replace condenser dryer and compressor , but the workshop recommend me drain the old refrigerant and dryer replacement yearly can improve liability for the compressor , after that 2nd year i go visit the workshop during refrigerant drain and dryer replacement can see a grey residue significant compare to stock

So this is made me wonder all the workshop AC guy only base on experience too much refrigerant too much work for compressor too less oil leading more wear and tear never done in service center maybe my other vehicle should give it a try on service center see if the compressor can as good as stock

For now if your AC have no issue stick with it first 😆
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I'm also concerned about contamination, you know, using dirty container to measure oil or when their vacuum devices are contaminated with previous customers' dirty compressor oil/refrigerant.

As for official service centre, maybe it's worth to ask if they do it in-house or simply drive the car to be serviced by outside aircon guy.

zuozi
post May 25 2022, 10:34 PM

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QUOTE(netmatrix @ May 25 2022, 09:05 PM)
Yeah. I heard people upgrade to the bigger fan motor from newer unit. They also have a shroud that covers the compressor so engine heat will not heat up the compressor. The dryer is common problem that is not serviced. That time 10 years not serviced at all!!!! Thats why the air that blew out is foggy like smoke.  laugh.gif I think i might service it annually or 2 years once. The last service i did was like 5 years ago. Only recently few months the coil leaked and can smell some kind of chemical smell in the cabin.  rclxub.gif
*
Because most workshop AC guy always telling me compressor do not need service or every 2 year due to they say AC refrigerant and oil won't become grey or black color unless compressor start to failed service is needed when coil are dirty haha

Then I ask what causing start to failed the answer is not enough refrigerant , not enough oil , condenser dryer dirty , condenser issue, condenser fin fall off or blocked

Problem is after i replace the compressor 2nd year start can see a grey residue advice me to change coil and condenser I say do i need change compressor they say no need but advice to use newer radiator fan from lagi best

After I bought all this from delaer replace everything including expansion valve except compressor 3rd year i go back as workshop advice drain old refrigerant and compressor oil by vacuum without need machine then i do see my condenser dryer have grey residue compare to stock

Haiz this is why make me wonder the AC guy either not enough refrigerant or not enough compressor oil which lead to my compressor easily more wear and tear compare to stock 8 year without any sign of grey residue Or climate change haha too hot that the main cause 🤣😂
zuozi
post May 25 2022, 10:43 PM

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QUOTE(mushigen @ May 25 2022, 10:27 PM)
I'm also concerned about contamination, you know, using dirty container to measure oil or when their vacuum devices are contaminated with previous customers' dirty compressor oil/refrigerant.

As for official service centre, maybe it's worth to ask if they do it in-house or simply drive the car to be serviced by outside aircon guy.
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Your condenser dryer is a filter should be able to do the job trap the residue and contamination dryer also capture any moisture from the refrigerant this is why also important to vacuum before refill any refrigerant which can causing over pressure just refill without vacuum haha

Official SC I ask before cost me RM 4k+ to replace all just a myvi... hahahaha this is the only reason i go out replace it , I thinking before drive to sc for a refrigerant flush and drain not sure they do it or not maybe during free want to visit SC and ask
rcracer
post May 26 2022, 09:38 AM

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Aircond is most complicated and most simple system at the same time
Max
post May 26 2022, 09:48 AM

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my experienced with old myvi (2009) ac, the 1st time its not cold after 8years bcoz of punctured top hose for the condenser.
replaced it, top gas oil, its cold already.
2nd time, magnetic clutch broken (the rubber holding the magnetic clutch plate disintegrated). diy replaced, working good again.
3rd time , not cold when stop, fan motor weak. upgraded with bigger motor fan set (halfcut). good already.

then gave the myvi to brother. ac not cold. he went topup gas and oil, good cold back again..

littlefire
post May 26 2022, 11:36 AM

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QUOTE(rcracer @ May 26 2022, 10:38 AM)
Aircond is most complicated and most simple system at the same time
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When the owner cheapskate and want to diagnose and fix which is the issue then it is complicated.
When the owner can spend to change whole A/C system new then it will be simple.. laugh.gif
speedy3210
post May 26 2022, 12:33 PM

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QUOTE(zuozi @ May 25 2022, 10:11 PM)
30k km for 4 year wow only go wet market and balik kampung use?

Well most ac guy checking pressure and refrigerant volume during refill they have no proper measurements other than that aka experience agak agak hahaha

So far as I know if you done any disassemble from stock the AC seem like more issue than before , if your AC still blowing cold air without weirdo smell stick with it usually can last 8 year minimum

I guess only manufacture vehicle assembly have a proper measurements how much refrigerant volume needed

Last time house got waja never service before 8 year later coil leaking during disassemble no sign of grey residue at all

Then my working vehicle myvi gen 1 stock AC also last 8 year due to magnet clutch failure during replacement no sign of grey residue too only replace condenser dryer and compressor , but the workshop recommend me drain the old refrigerant and dryer replacement yearly can improve liability for the compressor , after that 2nd year i go visit the workshop during refrigerant drain and dryer replacement can see a grey residue significant compare to stock

So this is made me wonder all the workshop AC guy only base on experience too much refrigerant too much work for compressor too less oil leading more wear and tear never done in service center maybe my other vehicle should give it a try on service center see if the compressor can as good as stock

For now if your AC have no issue stick with it first 😆
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Thats the whole problem with this automobile aircond industry, most of them don't want to invest in proper tools in their line of work. Chicken and egg situation. They think using pressure gauge alone will do la, but they forgot if they recharge gas at hot noon (36c) is different than thunderstorm rainy days (25c).

Also they love to skip the vacuuming process b4 recharge part, just to save 15mins.

Thats why i prefer (actually insist, nowadays) to only go to shop that invests in an automated flushing/recovery/charging machine. If there is no fault in the system aka periodic flushing/exchanging of PAG, then I get to save on filter/drier cost. Mind alredy set to do this on every car that I own every 4yrs if equipped with cabin filter or 2 yrs without cabin filter.

As for the info on proper "volume" of gas/refrigerant, it is already stated by the car manufacturer on a sticker under the bonnet door. It is always stated in gram/weight coz pressure changes with ambient temperature. At least true for japanese/korean cars that I own.

As for PAG volume to refill, got to refer to manufacturers spec.
abubin
post May 26 2022, 01:21 PM

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QUOTE(mushigen @ May 25 2022, 10:27 PM)
I'm also concerned about contamination, you know, using dirty container to measure oil or when their vacuum devices are contaminated with previous customers' dirty compressor oil/refrigerant.

As for official service centre, maybe it's worth to ask if they do it in-house or simply drive the car to be serviced by outside aircon guy.
*
If you have been servicing the car in SC for the first 3 years (due to warranty), the AC service is included in their schedule. AC service usually includes changing oil. This is when they plug the flushing machine into the AC and let it run for an hour. Check back your receipts.

If you don't mind paying more, just send the car to SC for all services. If anything is spoil, let them tell you what is the problem and then fix it outside workshop (cheaper). I have been doing this for my previous car (Honda City) and the car was in immaculate condition (engine, gearbox, ac) when I sold it on the 8th year.
mushigen
post May 26 2022, 03:07 PM

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QUOTE(abubin @ May 26 2022, 01:21 PM)
If you have been servicing the car in SC for the first 3 years (due to warranty), the AC service is included in their schedule. AC service usually includes changing oil. This is when they plug the flushing machine into the AC and let it run for an hour. Check back your receipts.

If you don't mind paying more, just send the car to SC for all services. If anything is spoil, let them tell you what is the problem and then fix it outside workshop (cheaper). I have been doing this for my previous car (Honda City) and the car was in immaculate condition (engine, gearbox, ac) when I sold it on the 8th year.
*
I don't see this in maintenance schedule nor have I seen it mentioned in invoice. My car is fully maintained by official SC.
zuozi
post May 26 2022, 06:59 PM

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QUOTE(speedy3210 @ May 26 2022, 12:33 PM)
Thats the whole problem with this automobile aircond industry, most of them don't want to invest in proper tools in their line of work. Chicken and egg situation. They think using pressure gauge alone will do la, but they forgot if they recharge gas at hot noon (36c) is different than thunderstorm rainy days (25c).

Also they love to skip the vacuuming process b4 recharge part, just to save 15mins.

Thats why i prefer (actually insist, nowadays) to only go to shop that invests in an automated flushing/recovery/charging machine. If there is no fault in the system aka periodic flushing/exchanging of PAG, then I get to save on filter/drier cost. Mind alredy set to do this on every car that I own every 4yrs if equipped with cabin filter or 2 yrs without cabin filter.

As for the info on proper "volume" of gas/refrigerant, it is already stated by the car manufacturer on a sticker under the bonnet door. It is always stated in gram/weight coz pressure changes with ambient temperature. At least true for japanese/korean cars that I own.

As for PAG volume to refill, got to refer to manufacturers spec.
*
Yeah this is why most people prefer if AC without issue don't service it once service too late to regret haha

Well since I'm already washed my hair wet I guess have to stick with it until i sold or recycle the vehicle haha

 

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