The actual problems have long eluded me. This vehicle had its engine hoses disconnected and plugged when I purchased it. Either the heat core was leaking or the climate control was malfunctioning, I thought. I made sure there were no leaks in the heat core by testing it. In order to replace the ...

Greetings everyone. The heat won't go off, and I'm trying to figure out why. Using the URO kit, I was able to fix the monovalve.
It is functional. Upon removal, I physically verified that it responds to toggling with the acc. I have attached an LED light to the monovlve so I can see when it receives ...

You are the only one who can accomplish that job well! How I would give anything to just be a fly in the wall.

This is my first Quattro vehicle (I've owned VWs before), and I'm trying to figure out how to service the transmission, AWD clutch, and rear differential because I recently acquired a manual B9 A4 with 100,000 miles on the odometer. However, I'm having trouble finding information about the right ...

In my opinion, the sound is simply the chain turning on the vanos gear. It doesn't bother me in the least.