I have a VW Sharan 1.9TDI Auto on a 04 plate.
When I put my foot down on the the accelarator while it is on auto mode it just does not seem to have power , even when i put it into manual mode.
Anyne there can help.
You need you intake cleaned. It gets full of carbon every once in a while.
I found the vaccum pipe which goes from the turbo sensors (there are two on the right behind the battery) had fallen off. The car drove like a slug. Track the pipes off those and the important one fits into the back of the air-filter and creates either avccum or poisitve pressure which sends across to those devices behind th battery. With it put back on car was like new.