was supposed to be my last post but here i go..
Thanks bro. She is fine. Some motorcycle cut to her lane so she avoided it but she lost control and went through the middle divider. Miraculously she only suffered minor arm bruises but the car was on it's side when she gained consciousness. She also hit the signage with smashed to the windscreen. luckily it was tinted to it didn't shatter.

Well, I unable to answer you on is there a need or.... is a closed system some say better change, some say no.

I flush and change it recently at Proton SC, so I can share with you the price is RM140

I do it almost 4 years... 

You can actually do that cheap enough in any workshop. Just note that original proton head gasket is rubber based while in workshop you can request for silicon ones. On the hose, if you need to change the hose, probably you can make it a point to replace thermostat one shot.

Yeah silicone one are more durable than rubber gasket. Can't really tell you the price difference since i never replaced it with rubber gasket. You can check in any spare parts shop by asking.

For your hose damaged there's a good chance your thermostat is rusted after long use. You can ask your mechanic to check. My point is since you already drain coolant to change house, you might want to change thermostat one shot since the access is the same. If your water pump is not changed for 160,000km, then can consider change. Proton recommends to me water pump to be changed every 160,000 km, i.e. every 2 times of timing belt change.

Cam cover gasket leak of Campro is very common. I got my leak around that mileage also. But it's not something that very hard to change. Suppose I can live with it.

I got it changed in workshop. All together with worksmanship less than 150 ringgit. The gasket less than 100. The rest is worksmanship.

No they don't clean it for me. I'll just clean it on the morning of my off day with dishwasher and brush with cold engine.

Was it you or wklow28 bro who had the same problem last time? Have you rule out TCU problem if your drive is AT?
Have you changed a new air filter? It's always a cheap fix for me. Petronas EO tend to degrade faster for my ride. Around 3,000km after oil change I already can feel engine noise coarse, could be because of that, could be not. If IAFM it's the famous diesel-engine like tak tak tak sound. Can easily get diagnosed and fixed in Zordaq, or other shop that provide IAFM repair.

I was thinking along the line of your TCU connector issue.. but better investigate from cheaper parts like engine mounting mentioned by @anakMY bro.

As mentioned previously, there workaround solution to your complain is... Change car! This is the normal behavior of our car to rev up and down during traffic jam slow moving maneuver, sometime the gear confused and reluctant then suddenly change, thus the "jerking". You can't accept this behavior then have no choice other than looking for another car...

Guys, what is the lifespan of the timing belt. Mine is 5 yrs car , clocked 65k km so far . Thinking of changing... And is there a need to change the ATF oil filter ? is it expensive to change the ATF oil filter ?

current mileage?
mileage & when last change EO, oil filter?
mileage & when last change air filter?
what brand and viscocity of EO currentlyuse?

my saga use liqui moly 10w40 can run 12k no problem.
how about sparklug?
fuel filter?

air filter change every 20k.

my saga use liqui moly 10w40 can run 12k no problem.
how about sparklug?
fuel filter?

air filter change every 20k.

I use 2 litre. Then top up needs about 1.5 bottle 1.5 litre distill water from AEON. Put lesser also can, just make sure you use distilled water. Reserve tank there can put distilled water.

Never, ever use tap water.