Acceleration Hesitation

[jerry666]

Hi, I have a manual 2010 TSi 118 (no mods done). It has done 70K. At 60k had to have the rings replaced after I lost a cylinder. Since then the car has been running fine until the other week. I noticed a slight hesitation when accelerating while in top gear. Didn't think much of it until it started happening more frequently & it is now happening in all gears quite frequently. At times it repeatedly hesitates & I can feel the car surging trying to accelerate. If i am in the lower gears just cruising around I don't feel it until I put the foot down, then it will hesitate. Sometimes only once, sometimes multiple times. I plan on booking it in for a checkup as it is still under an extended warranty. I just wanted some advice on possible causes as I want to give the repairer an accurate fault description. Any advice greatly appreciated.

[vdubmotorworx]

Are you using 98 RON fuel??

[The One]

And if so, what company are you using to fill up with?

[jerry666]

Yeah good point. I mix it up, sometimes 98 sometimes 95. Always have, never had a problem until now. I usually use Woolworths Caltex as there are more of them in my area. They are all on the same stretch of road. Will have to try some 98 from a different company. What are the changes of bad fuel causing this?

[ziggyboy]

Do you have warranty?

The 118TSI is a very expensive engine. AFAIK VW never actually fixes them, they always replace them.

[buzuki]

Could be a supercharger clutch issue?

[jerry666]

Do you have warranty?

The 118TSI is a very expensive engine. AFAIK VW never actually fixes them, they always replace them.

I have an extended warranty.

[ziggyboy]

Just take it in and get it resolved ASAP.

[The One]

Do you have warranty?

The 118TSI is a very expensive engine. AFAIK VW never actually fixes them, they always replace them.

You are mistaken, VW replace injectors, pistons, piston rings and software update.

To OP: Always use 98RON, especially for a CAVD as Australian fuel quality is extremely poor. CAVD in Europe is known to be a 'bullet proof engine' due to fuel quality there compared to ours. FYI

[mr gee]

spark plugs?