i dont no weather anyone can help me. i own audi a3 1.8t 1999.

and if im driving along at about 3000/4000 revs and i put my foot to the floor to accelerate, the revs jump up to like 5000/6000 then go back down to 4000, then just carries on accelerating up. Does anyone no what this is?

Someone told me it could be turbo lag but he don't no much about cars.

 

Sounds more like your clutch is slipping.