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.

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 😆

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.