Seems like many Mazda 3 owners are super-sensitive to sounds. Nyek-nyek sound, kruk-kruk sound, tik-tik sound, sound of exhaust cooling, sound of engine louder when cold, sound of soft hiss at high speed and now this. Of all these only the kruk-kruk sound merits fixing. The nyek-nyek sound which only occur when going over a bump in the wet is not worth bothering for non-fussy owners.

I think this super-sensitivity to sounds is because CKD M3 has surprisingly low defects compared to Honda Civic X and HRV where owners have plenty of defects to complain about.

I didn't notice any cluck sound when starting but if it doesn't affect my car's normal functioning I really wouldn't bother.

I don't get what you mean. At 3500 rpm you get a satisfying "Vroom!!". If you accelerate hard from standstill you get a "Vrooommmmm......" Sounds much better than the whinny Civic X.

at beginning they also thought that O2 sensor faulty but after scan with their tool turn out catalys converter that is faulty...they told me if i only change the O2 sensor that only last for a year and if i change the whole set it can prevent the problem for 2-3 years...i don know they want to cheat me or what cause i don know much about car...

If you change your air filter?

Old timer method.... put some charcoal inside the car for the musty smell
As for the cockroaches, leaving pandan leaves inside the car.
Try and see if it helps.

i thought all cars will have the same issue?

what model tyre also? 18"?

Just some updates on my knocking suspension and lower arms - brought to glenmarie sc and had everything fix now it's sounds really quiet and like a new car. Service Advisor confirmed that my ride is the worst ever they have seen probably I was taking too long for all possible noises to surface !:)
Now they having the 4 generation bushing to replaced my previous ones - car is solid now will need to monitor further especially with some rain

bros....my mazda 3, 3rd birthday is coming soon which means the warranty is due.
can anyone tell me where i can install the rear camera for my cbu mazda3 and also where can i unlock the speed limitation.

Thank you every much

Technically, it is not really speed limiter, but rev limiter. IF you try to red line the car, it won't go into the red zone with the auto. So the top speed limited to around 210-220km/h. It is more to protect the transmission and also engine components. For our hot climate and low quality petrol, red lining the engine often puts further strain the drivetrain.

Sad story..