2009 S3 has judder under hard acceleration, any thoughts?!

VAG_BADGER

Ricers in the rear view!
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Hi all,

As the title suggests really, my 2009 S3 stage 2+ sport back has a judder under acceleration. It's prominent in 1st, 2nd and a little in third but then disappears. At its worst when turbo kicks in. Feels to me like it maybe something like a driveshaft or the prop really but not ruling out the haldex or maybe even a misfire?! Any common problems, I've had a search on here but to no avail sadly. I'm not sure if it's had the haldex service, its on 44k. That's if it can be serviced, I read about different gen haldex units on different years!

Thanks in advance.

VB.
 
The usual suspects on mapped cars are plugs and coilpacks.