Juz to share my experience..
i have a proton persona elegance year 2010..
1st problem..after a year water pump squeeking sound...change it at the stupid SC at jalan peel sumhow they destroy my car and the RPM shoot to maximum whenever i start my car n aircond knob will auto on and off(Going back there so many times until cant tahan see them d wan vomit)...so go to COSE (since its the HQ and recommended) to change it..they say its the 1st time they see this RPM problem...so they ask me to leave it for a day...ok...(have to use KTM to go back since i stay at Puduraya area and COSE is sumwhere near to subang jaya)..Waste my time should told me earlier if cant fix on the day...went there at 8AM but they ask me to go back when they near to closing..
next day said ECU problem called me at 5pm how to go and get my car?..live so far..no other transport so leave again another day...
so went there the next day to get my car luckily a colleague send me..got my car everything ok...
so i was happy but sure thing my happiness was short live...now my car have a new problem suddenly i dunoe y the break disk and break pad is touching with each other or mayb some other problem have a very loud scratching sound like metal touching...very annoying....i not yet go to SC vertified since quite bz....
then i remember before sending to COSE my mileage written is 24508 if not mistaken but after getting my car back from COSE is 24544 they ed bawa my car go hantam and racing maybe...xS
it shud not be so far gap for my mileage just to change the ECU..hmm..this makes me wonder and scared to leave it at any SC again..
But i know for proton its impossible even u take good care of it...

but that day when i was coming back from cameron highland...to kl..suddenly the engine got some some loud weird hitting sound for few second and i was shock and then the engine light at the meter panel light up and the screeching sound was gone..and i was very confused...haha
BUt now the engine light at the meter panel was gone and the screeching sound is back again....Damn..so many problem wit my car now...sakit kepala....
thats y i was thinkin either is the disk break or the engine problem...

yes when the car is moving the sound comes but on and off..some time got and then none....thats for the screeching sound...when hit some uneven road got sound again...haiz..some time its so loud that in the cabin also can hear it...then when i break another weird loud some come out again..haiz...damn...
i love my persona..but i hate the problem and headache proton give me..haha
Btw appreciate all the help from persona club members

hi persona club members...
the aircond auto on and off i juz bring it to COSE and they change a new a/c knob the whole set 3 of them..the a/c speed control,the coldnest control and the last 1 blow control...until now dont have any problem d...they say old 1 loose d so change..