Hi all just bought ma first diesel, 1.7dti. Got a power issue, when setting off very sluggish nothing much happening between 1-2000 revs then it starts to pick up. Same thing happens when i change into 2nd sometimes have to drop back down to 1st, when i do get going no probs. Changed the oil,fuel & air filters along with the oil, only used to the quick responce of a petrol. Is it me or has any one got any ideas as to whats wrong?