i know nothing about car air cond but
i m loyal customer for this Vision Car air cond repair workshop in sungai besar selangor coz his skill really satisfied previously my car air cond gt lot of problem here n there in out many workshop still cannot giv satisfied outcome but this mechanic help me solve out my problemmm ... n i reccomended a lot customer for him hahah and from what i know he is DENSO authorised dealer in malaysia ^^