Wa   the IAFM so fast "Kong" already? How do we know that the IAFM is "Kong"??

I feel that the engine sound is loud event when I got my car on the first day. I duno is it normal or the fan belt or what make the sound so loud  

noisy engine..."klonk,klonk" sound like some said its sound like old diesel or old taxi engine sound... ...lucky mine is 1st batch without iafm...no problem..even pickup not good...

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Added on August 13, 2009, 1:29 pm
its normal..impossible IAFM spoil when its new....mostly is the engine fan sound....normal thing...even old mercs also sounded louder...but important factor is interior quiet

noisy engine..."klonk,klonk" sound like some said its sound like old diesel or old taxi engine sound... ...lucky mine is 1st batch without iafm...no problem..even pickup not good...

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Added on August 13, 2009, 1:29 pm
its normal..impossible IAFM spoil when its new....mostly is the engine fan sound....normal thing...even old mercs also sounded louder...but important factor is interior quiet

just double check ur AIFM, some kinda rod hv to replace. mine had same problem, noisy. but now all is good.

Cheers!

How to check it???

Asus, what were the symptoms? Leaking engine oil?

Actually the IAFM is it just to suck in more air  to the engine???

I amaze that when I drive my fren vios, when I come out from the car, it is so quiet even I can hear the fan sound, but still very quiet.

Morning dARKaNGEl,

Mobil products have been working good for me, including their lubes and petrol (Synergy F1 works best in my Persona). As for Mobil Super S 10w40, yes I've tried it and its pretty good. If you've just switch from Syntium with viscousity of 15w50, you'll immediately notice that the engine runs noisier and revvy happy upon switching to 10w40 oil. 40 weight is noticeably lighter than 50 weight oil. FC wise, pretty subjective for me as the difference is not that dramatic.

As for Castrol, I assume you're thinking of the Magnatec. I haven't personally tried it, but some said its good (maybe because of the BP DNA in it). Castrol is BP's flagship lube so it must have some of the engineering goodies dedicated to them. However, if I'm not mistaken the Magnatec is a premium mineral oil, and not a synthetic blend/ semi-synthetic lubricant.

Price wise, I believe both are priced at around RM97. Any sifus with better lube background care to give more comments?

im using mobil super s 10w40....so far after 3000km++ of usage still good....u can try it if u want..... ...and i will do the next oil change after 6500km or 7000km of usage

Just want to share my disappointment of my persona & proton
Basically what am I going to highlight here are quality issues (again & again..)
I don’t want to write much..just list down the problem from day 1 till now (my persona only 4 months old..why got so many problem!!) 

1. handbrake..can’t fully released..problem solved..
2. both front alloy rim cap came off…bought 2nd hand at tyre shop 
3. nyek..nyek sounds from rear seat’s locks..problem solved..DIY
4. the famous clunking + nyek..nyek sounds...the clunking sound still persist with a bit improvement after replace insulator.. 
5. bad radio reception..no solution yet..get used to it already..
6.  engine hard to start (sometimes) + loud sound engine (like old taxi)..going to replace the IAFM soon (only 4 months old..IAFM out already!) 
7. noise when braking..problem solved..done brake service
8. faulty of volume controller at steering..problem solved..replace new switch..
9. air cond system sometimes on/off..no solution yet..
10.  interior light faulty..don’t know whether circuit  problem or bulb problem..going to complain at SC soon.. 
11. weird sound while turn down/up window (driver side)..might be power window problem.. going to complain at SC soon..

Not sure whether you guys face the same problem..or I’m just the unlucky one..
Fed-up la with proton quality… 

Just want to share my disappointment of my persona & proton
Basically what am I going to highlight here are quality issues (again & again..)
I don’t want to write much..just list down the problem from day 1 till now (my persona only 4 months old..why got so many problem!!) 

1. handbrake..can’t fully released..problem solved..
2. both front alloy rim cap came off…bought 2nd hand at tyre shop 
3. nyek..nyek sounds from rear seat’s locks..problem solved..DIY
4. the famous clunking + nyek..nyek sounds...the clunking sound still persist with a bit improvement after replace insulator.. 
5. bad radio reception..no solution yet..get used to it already..
6.  engine hard to start (sometimes) + loud sound engine (like old taxi)..going to replace the IAFM soon (only 4 months old..IAFM out already!) 
7. noise when braking..problem solved..done brake service
8. faulty of volume controller at steering..problem solved..replace new switch..
9. air cond system sometimes on/off..no solution yet..
10.  interior light faulty..don’t know whether circuit  problem or bulb problem..going to complain at SC soon.. 
11. weird sound while turn down/up window (driver side)..might be power window problem.. going to complain at SC soon..

Not sure whether you guys face the same problem..or I’m just the unlucky one..
Fed-up la with proton quality… 

yeah, you just pray hard that it won't fall off..

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Added on August 13, 2009, 9:08 am

Yeah..I went to PESC couple of times in a week, quite rush for me   

guys bad news for my 1wk persona...sent it for a 1st 1000km service and u know what...they have to change the engine head coz got leaking...at 1st i thought just change gasket but the SC said they are changing the complete head...need to wait for the parts from proton...damn it...

luckily the engine oil is still there if not have to overhaul...

so disappointed with the engine quality 

guys..i'm planning to instal rear boot insulator since my b-line doesnt have one like m or h line..where to get this item?

I tried out my friend's Vios J spec last night. The ride was hard, my Persona is definitely much better, more comfortable. And I think the sound insulation is not quite ok also, as the tyre roar can be heard quite clearly inside the cabin. Maybe the stock tyre is noisy? Or maybe Persona is definitely better?

I tried out my friend's Vios J spec last night. The ride was hard, my Persona is definitely much better, more comfortable. And I think the sound insulation is not quite ok also, as the tyre roar can be heard quite clearly inside the cabin. Maybe the stock tyre is noisy? Or maybe Persona is definitely better?

Wa   the IAFM so fast "Kong" already? How do we know that the IAFM is "Kong"??

Hehe. Already heard lots of complaints on the new Vios's NVH, and a lot would agree that the older Vios rides much better than the new one. Some tried changing stock tires to comfort based but the improvement isn't that dramatic, so I'd guess there's a lot of cost cutting being done on the new Vios.

loong2020, maybe because you're using Michy PP2? Its performance tire so it might be a little noisy. My next tire change would be a pair of Michy Primacy LC! I've done 2 layers of soundproof on 4 doors (SP Mat, Sunway) and honestly there's quite some improvement here. Previously the ride was with a lot of wind noise and traffic noise but now motorcycles just whizzed by without giving you a feeling that you accidentally winded the window down. Now all I hear is the roaring of my NCT5 tires, very very annoying, even at slow speed the tire would just scream as if it has got some tarmac sensitivity problem

for me...based on my 1year 7months of owning 1st batch persona
1)no problem
2)solve by getting aftermarket rim cap
3)DIY with tape (normal for persona)
4)u mean when turning left??? i dont care the sound also...
5)mine ok...no problem...not to say so clear...but can listen and most of the time i listen to CD
6)no problem as mine is not IAFM...plain campro 1st batch...i guess is very common IAFM to spoil and turn into lorry/old taxi sound....
7)no problem...sound is due to that original brake pads, replace it with bendix/bosch power plus/rs or some aftermarket well known brand will solve
8)same....mode and reverse track gila gila....lazy to repair...even waja's control is better 7years still can press...this 1 so fast go haywire...
9) no problem
10)no problem
11)no problem

other than that, the interior parts still intact and the parts still "sleeping" hope the parts in the interior wont "wake up" and started to make rattling sound and my driving style would be average and sometimes rough....