My HVAC lights on my 96 A4 started flashing on and off, but now doesn't work at all. Is there a bulb behind the unit that can be replaced? Any help on getting to it would be appreciated.

 

My exhaust on my 96 A4 is solid, with the exception of a hole in the driver's side flex pipe. Can the flex pipe be cut out and replaced with a solid piece, or is the flex a must? What about replacing just the flex pipe? I hate to replace the entire system since it's just that one spot.

 

you can have the flex pipe replaced without changing everything but you cant fit a solid pipe in its place due to movement of the engine which is why its there