Hi guys, I'm driving a Proton Saga 1.3 S Saloon, 2013 edition. My mileage is around 125,000 KM.
I've always serviced my car at Proton Official Centre so all the parts are genuine (I hope) and usually there's no issues on the road.
Recently I''ve been experiencing my car jerking like a manual shifting gears when the car comes to a stop and then resume jalans. Like in traffic lights.
The jerk can go from a quick 2s jerk and then changed gears and can also jerk super crazy like going to "mati engine". Usually in these 2 situations I'll just try to press the accelerator gently to ensure it doesn't "mati engine" and to "makan" the gear.
I checked at to the Proton Official Centre but they told me it's the gear box problem because of "wear & tear". Need to pay about RM7K including labour to fix. Says its a common problem and nothing much I can do about it.
The mechanic mentioned I can continue driving it and go fast etc but it'll soon become more frequent and that's the time when I'll need to really fix it

It's an Auto Transmission and I have never move the gears from N to D and vice-versa during traffic lights (cuz i read before ppl say it will harm the gears more than doing good), so it's quite sad to kena this problem.
Anyone facing similar issues before and any suggestions? I have 3 solutions in mind;
1. Try to fix outside of Official Centre and see if can get OEM for cheaper (maybe RM5K-ish)
2. Sell my current Saga (probably can fetch for RM6K-ish) and buy a new Saga FLX.
3. Explore new & higher budget cars - probably a Toyota Vios.
I'm leanings towards 1) cuz I already fully paid my car loans, but I'm also worried this will be the start of many more problems - cuz usually after you fix 1 part to be new, the older parts may not work/collaborate as well.
Thoughts?
Try to get a second opinion from outside workshop or other SC. in most cases jerking may not be gearbox problem.