I dont think checking ac system with air create any problem,
when we purge gas, inside only air remaining, which he normally vacuumed in the end,
I will not rate him very highfy mechanic but he is very sincere to his work and have very good control over his guys, last week i also visited him, when his boys were working i tried to help them, they said sir, u pls dont do it as if ustad saw we wud be in problem,then there was one bold which thread got slip,their boys brought some old used bolts,when they were working i took out one same tread bolt,but little rusty, when that guy saw he said sir bolt is not good and then he took out one better condition bolt,thats only possible when mechanic has good control over his guys,i rarely seen such behaviour from chotas, abubakar also told to their guys to remove condensor and wash it properly,when they started washing lot of mud came out, which only possible to remove by taking out condensor.
He vacuumes system very well and then used original linde gas, believe me i m enjoying my car chill ac after very long time,
waisay if they vacuum and its not increasing then they dont need to pressurise the system,as if there is leakage in the system, it is more difficult ,to bring the vacuum or to hold it,instead of press.
Honda centre was asking 13 thousand for same work but he charged only 2300,i only hv objection on filling oil, i meant how they know how much oil to fill, i asked from many mechanic they said oil normally evaporate during purging gas, any way kuch na kuch compromise karna hota hay, but abubakar is highly recommended
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