Jerman,
I'm a bit stumped when it comes to giving directions but I shall try. Just don't start on the location map as I can easily get myself lost even with google earth. Nevertheless, here goes nothing;
Right after Tesco Kajang (not the Semenyih chapter), take left (as right will take you to KL) , just a bit of left and you will see on your left(!) a small perkuburan islam followed by a used car lot. Move further afield then you will see a small cushion shop.
Then next to it you will see a shop/warehouse selling papan. Bestma is just next door to it.
I initially thought it was Bestman but upon checking the bill(s) which one normally does under duress, it was Bestma all along. They have 2 computers to do diagnosis and hence the airbags diagnosis.
I got back my Z today, which they gave a complimentary wash. So its a bit too early to tell as during the first visit I did not include sensors (camshaft) in my shopping list.
The mechanic's name is Michael, an agreeable chap. His number is 0126648227. Just mention me, Saifuddin, though I doubt it will carry any weight.
Happy hunting!