i was hoping that someone could help with a few questions that i have about my 2004 allroad. there are several issues that i have.

-my dash/vinyl seems to be delaminating in a rectangular area (about 5x9inch) on the front passenger's side of the dash.
-the engine will occasionally rev to a high rpm before shifting (in ordinary driving)
-the driver's side a/c vent blows warm air when a/c at about 65 degrees (other driver's side vent and passenger vents ok)
-there is an abnormal light knocking, that occurs when braking, at all speeds
-the blinkers often blink erratically when engaged
-the area around the driver and passenger, inner door handle, is delaminating, from what seems loke normal ware and tear

are these problems normal for a 2004 audi, allroad, with 38k miles? any advice is greatly appreciated.