any Livina owner service their air-cond in Johor Bahru?  Can recommend a workshop or service center who know what they are doing?  how much to service at Tan Chong service center at Plentong?

My Livina's air-cond not so cold lately.  Went to a workshop near my house and was told it will take 1 whole day to service it coz the cooling coils were hidden deep inside, need to dismantle a lot of things to get it out and clean.    labour only charges about RM350++