Recently the acceleration of my Platz 2003 has decreased and it does not gain speed. My car went to around 80Km/h in second gear when pushed but now hardly goes to 40km/h. The engine makes a lot of noise but not speed. I went to CNG mechanic for tune up, he told me the clutch plate and the pressure plate need to be changed. As a short term measure he changed the plugs to BOSCH 4 point ones. I also got the car checked from my auto mechanic, he too told me to get he plates changed. I checked the cost of clutch+pressure plate which is around 8500 here. The total expenditure including the labor charges is 10500. My driver believes that there is nothing wrong with the car even though I can feel severe performance degradation (The drive is even bad then a Mehran).
What do you guys suggest? I am only hesitating to go for it wondering if its really the plates or something else. Looking for some expert advice.