Hi, Im reasonable new to the scene, previously owned a Mk1 Leon cupra. I purchased myself a late 03 S3 with 133k on the clock for £3250 with a PSI remap on. Excellent condition and spec, had a few tiny things that i wasnt happy with but ive soon sorted them over the 2 months ive owned it. My main issue now is the vibration im getting when accelerating through the seat/whole car when accelerating. It happens when accelerating hard 70++ in 5th and 6th and up through the gears when accelerating away hard... This is when im guessing the haldex is operating and this causing my vibration? Could it be a daft out of balance rear wheels? Ive had new tyres on the front which didnt change anything. Is there anything specific i should be checking? Other than that everything seems to function fine, goes like a rocket (a vibrating one at that) and is a dream.
Any help at all would be great.