Aiyo unless your AC system has been opened, no need to flush anything. Just make sure your condenser clean and cabin filter changed regularly. If your AC is no longer cold chances are there is a leak somewhere, cooling coil too dirty or compressor end of life already.
How much time needed to do so much work? My car including M oil change, aircon flushing, road test all done in 90min.. Macam tak betul je. Flushing ac means flush out all n top up gas je kan? Tak buka dashboard pun.
The thing is nobody would want to bukak dashboard unless you want to replace the cooling coil, not even servicing it.
Even your foreman would be afraid of taking your dashboard apart because in the course of doing that he may break some clips here and there and you may come back complaining to him of rattles and noises. Another headache for him.
Now, imagine your old and frail and wet and soggy cooling coil sitting inside your dashboard for the past 7 years. Do you still want to bother cleaning or flushing it? Even to pull out the cooling coil may also cause damage or accidentally puncture it due to bending and aging fins. What if it leaks after this, another round of taking out the dashboard? That would be another labor charge.
compressor needed to have it's oil changed just like a car's engine but that will depend how old is TS car's 1st
every a/c shop has a minor service and a major service
compressor oil change is another big scam in the local AC servicing. in reality, this has become just another way for some service providers to upsell unnecessary work under the guise of "preventive maintenance."
compressor oil is formulated to last the entire lifespan of the compressor. it is a sealed system, meaning that under normal operating conditions, the oil doesn't degrade or get contaminated easily. So if a technician tells you the compressor oil is dirty or needs to be replaced, that should immediately raise a red flag.
let me ask you, why don't you replace your compressor oil in your refrigerator, AC?
if the oil is dirty, that actually points to a much bigger problem. this is likely internal damage or contamination within the system. In such a case, just replacing the oil won’t fix the issue. The system needs to be properly diagnosed, cleaned, and possibly have components replaced and very likely the compressor is already grinding metal shavings. Replacing just the oil is not going to help until the system gets contaminated again.
lemme ask u 1 thing that u can ask yourself u wanna refer until refrigerator right? thn why is your refrigerator can be repaired if it's broken?
another question, why is there recond units of a/c compressor....what did they "reconditioned"?
a good a/c technician will take the compressor out and diagnose and tell you what the problem is, not straight as u to replace a good a/c technician will tell u everything is repairable until your magnetic clutch eat until your housing already thn it's completely useless and needed replacement other than that situation, everything is repairable ....there is no such thing as "entire lifespan" of the compressor unless the housing itself is damaged
my saga BLM until today had major service done at around 9-10 years old and that compressor survived until today...17 years old today the only compressor that i needed to replace is my 2012 myvi which failed recently because the magnetic clutch damaged the housing else my technician said would be repairable if anything else failed and a major service isn't just replacing the compressor oil only FYI
lol strawman fallacy. when did i say a fridge cannot be repaired?
my point is why don't you replace your compressor oil inside your fridge every few months?
and when did i say you cannot repair or refurbish a compressor? I have only mentioned if the oil is dirty, something needs replacing or fixing. whether you want to replace the whole compressor or change magnetic clutch or band aid your compressor it is up to you.
but u did say changing the oil is useless and that the oil is meant to be last for the entire lifespan of the compressor now u say if the oil is dirty and should be replaced?
so which one is it?
at 1st u say no need change oil, only need to change compressor if it fail now u say can refurbish compressor, can change oil?
like why would u need to replace the whole compressor when it can be refurbished?...and can be done on the spot?
wow you really cannot understand this huh?
i never said you should be replacing just the oil. if the oil is dirty, means you need to open the hvac system to fix or replace something. Nobody should go in and ask to replace compressor oil every few months because their backside is itchy. Period. Compressor itself is maintenance free. Period. When it goes wrong, sure you can weld it, fix it, replace a gasket or two, or just throw it away. That itself is not maintenance, it is a repair.
Again, back to this question - why don't you change your compressor oil in your fridge?
and i have never ever, ever said you cannot refurbish a compressor
your concept revolves around changing it every few months but compressor oil is counted by years and u keep going back to your fridge, we use it until it fail and what do u think the technician did to "repair" it every time? they certainly didn't change the compressor isn't it? so what did they "do" to repair it?
and your concept revolves around JUST changing the oil in the compressor when a major service changes more than that to prolong the life of the a/c system
hence i said in the beginning it depends on how old TS's car is but then u kept attacking saying changing the oil is nothing because it's supposed to be a lifetime oil but thn say can change when the compressor failed refer back to scotty kilmer and many mechanic bro...there is no such thing as a lifetime oil
and do u know most of the compressor changed in malaysia isn't brand new although they say it's brand new?(unless it came in a box that is from the original brand manufacturer itself) and it's all being done locally https://www.swj.com.my/public/ if you go to your a/c shop and saw these boxes lying around, you're not getting "brand new" compressor but rather "brand new reconditioned" no shop throw away your compressor unless the housing is damaged, everything can be refurbished on the spot that's why a lot of scam going around kept telling their customer their compressor is gone when it's not
I really don't know why do you keep putting words in my mouth. My question is a very simple one - why don't you replace your fridge compressor oil periodically but wait until it fails? You don't seem to have an answer...as expected
You keep bringing up the topic of refurbishing a compressor. Please quote where did I say explicitly that a compressor cannot be refurbished.
You really should reread my post. Three times or more if required. I never mentioned anything wrong with refurbishing a compressor nor does this concern me. My point is very, very simple - the oil does not need to be replaced periodically. Even after years.
And since you mentioned and worshipped scotty kilmer and somewhat interested in refurbishing compressors, even he is telling in your face not to use a refurbished compressor.
"Auto mechanic for the last 49 years, Scotty Kilmer, shows why you should never use a rebuiilt air conditioning compressor on your car. If you want cold AC that lasts many years, ONLY use a brand new compressor. "
I rest my case.
This post has been edited by guest54321: May 8 2025, 11:50 AM
I wonder also. Refrigerator - no such thing of preventive change of compressor oil, use until spoil, norm to use 5 to 10 years never change. Room air cond - never heard of change of compressor oil also, only top up if gas no enough, or wash blower when dirty. Last time I asked maintenance people, they said already got lubricant within. But for Car - need to periodic change of compressor oil?
I taught all work the same principle or car use different compressor mechanism?
So that the local ah chong ac guy can make a living.
Just bought engine oil for my old car thought of want to DIY change the oil. Came across Shopee and the seller said it is Genuine Shell Helix Fully Synthetic (ORIGINAL) as per stated @ RM140 per bottle(4L). Quite similar with Shell store i guess.
After got the product proceed to scan the QR code but it unscannable. Chat with seller reply with instant templates "bla bla bla, our sources are real"
Damn fuckers really time and money wasted. Going to report KDNP and fuck them up and down.
i bought an original shell 5w-40 also unscannable QR but when i key in the code manually in the website, it shows it is genuine.