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HI there,

my haldex seems to have some problems.
When accelerating, especially in 1st, 2nd and 3rd gear, it feels like the haldex is not activated as smootly as it used to be. More like on/ off-switch.

Anyone have any experience with this? maybe knowing what's the matter?

btw i'm running a S3 '00
mildly tuned to 350hp/ 410nm

you are running a vf34 like me then,jd tuned.Why not try one of the new haldex ecu's.