The Malaysian CAR stipulates an age limit of 60 years, that's a fact. However they don't call it Bolehland for nothing.
Several years after I had passed that magic figure I was visited by the D-G DCA in Putrajaya and advised they could not renew my licence as I had passed the magic age. Nothing was said about the previous renewals. I offered to present a paper to the DCA proposing the separation of PPL and ATPL licences on age discrimination. The D-G was pleased to accept my offer and so a few days later I presented a paper based on UK CAA and South African DCA regulations.
The outcome was an email 2 months later stating the Minister of Transport had accepted my deposition and PPL licences could now be renewed subject to medical fitness without reference to age.
My Class II medical is valid for 12 months. Ten years ago I was only given a 6 month validity but after pointing out to the AME the validity of my South African medical he agreed that the correct interpretaion of Class II over 40 years is 12 months.
I am now in the 8th decade and going strong however at the last medical the AME stated that I may have to hang up my headset at 75. Well I better get those papers out again.
Good luck with your application.