Hello everyone. I've just bought an Audi A4 1.9 TDI 110. I'm a little concerned that the turbo might not be working properly as I've noticed when looking through the cars history that it's had problems in the past. I know it's not going to be the fastest car in the world as it hasn't been chipped but today when I was going up a steep hill it seemed very sluggish (I was overtaken by a corsa as well). Is there any way to check on the Turbo without having to take it to a main dealer? One more thing. The car didn't come with a manual so I don't know what all the buttons on the Air conditioning mean, could somebody talk me through them?