Anyone experienced reduced performance in the acceleration especially at the higher-end spectrum, ie. from 130 km/h onwards. Currently I experience reduced performance in power when accelerating the car from 130 km/h to 180 km/h. Extremely difficult to accelerate from 160 to 180 km/h, and when the needle reaches 180 km/h it doesn't want to go up any further. WHen it was new (mileage below 30,000 km), acceleration was better.

Recently serviced car.

Can we request the throttle body to be cleaned at the service centre by citing the reduced performance during acceleration?

Good to know the car is able to accelerate better with RON97 than RON95. I'll stick with RON95 as I don't drive over 130 km/h too much. It's only once in a blue moon, say 1 or 2 times in a year I"ll give the engine a workout by attempting 200 km/h. Though this recent experience tells me that i should not stretch the engine too much. Maybe the throttle body is dirty as you have suggested which affects the performance in the acceleration.

Thanks for the response.

I have googled a bit on throttle body cleaning. Apparently the throttle body cleaning usually applies to old cars with high mileage. Some references quoted a mileage of >120,000 km before considering to clean the body throttle.

Also, I have noted on the symptoms of a dirty throttle body as follows:-

1. Slow and uneven acceleration
2. Engine idles erratically
3. Reduced fuel consumption
4. Engine Stalling
5. Overall poor performance

From all of the above, my car doesn't seem to experience any of these symptoms although item no. 1 doesn't exactly apply as I only experienced difficulty accelerating from about 160 km/h onwards. Acceleration at below this speed is considered to be normal.

It is just the car now takes a long time to accelerate from 160 km/h to 180 km/h (cannot seem to go any higher, though I stop pushing the car after I notice the car is struggling very hard and the needle stopped at 180 on the speedometer). Assuming the car now takes 15 seconds to go from 160 km/h to 180 km/h. Previously, the car may just take 8 seconds.

Anyway, I'll keep the body throttle in mind.

Ok thanks. Have you cleaned the throttle body in your Preve Turbo?

anyone here service their cvt outside the sc? if yes how much does it cost? thanks in advance.

Heard the Preve Exec will be discontinued after the new Persona is introduced.
But i am not sure if this is good or bad news to me?



My car is Preve Exec CVT May 2015. RM55k OTR after 5k discount.

Wud this affects the resalve value badly or resale value gonna be better coz it will be "rare" Preve?

I think RM300 is high for a CVT filter, I asked Proton and it's only RM22x something inclusive GST.

SC told me for 60,000KM cost is rm1.3k.. wow

I think my warranty will due before I reach 120k. Do you think it's better to do at Proton SC or outside for major service after the warranty is gone?

price for syntium 5000 & 7000 ?
feel smoother? pick up, response, accelerate?

not feel better when using syntium 1000 15w50.. sometime like heavy car.

anyone have the service list schedule? wanna check for 10000km service

It's the other way around IIANM, engine and gearbox related problems are covered until five years as what an SC told me.

How much is service for 120,000km estimated? 

Btw, my car turns 3 year old in October and will be around 90,000 km in milage. I'm still servicing at SC so far and my car hasn't really gave much headache to me since I bought it. So i'm wondering whether I'm going to need to continue servicing at SC, or opt out. As I know, major parts of the engine only covers up to three years of warranty, and others up to five years. Since the warranty finished, I'd think better to save some money and service outside, huh?

pic please. 

i thought preve has 5 years warranty

Brake System

What is better brand brake pad for Preve CFE?
TRW, Brembo, Works Engineering, AFI, Bendix?

Give some advice & experience.

   

Ah ok, will enquire from him more.

I haven't taken close look at the brake discs since purchasing the car years ago, but judging from part numbers, it seems like the front rotor is different from the rear rotor.