Hi,

I recently (12/31/11) purchased a 2001 Audi Quattro TT (225 / AMU) from a friend who was the original owner. The car has 108,xxx miles. The timing belt went at 60,xxx miles and a rebuilt head was installed ($6k job).

I purchased the car out of state and we drove the car back to my house (about 500 miles). When I was driving the car back down, I heard a loud noise which worsened when the heater/ac fan was turned on. I suspected it was a belt issue. I took a left turn, and the noise completely disappeared. I got out and looked at the various belts, fans, etc. and couldnt detect anything without removing the plastic cover. I completed the drive back home with no problems. However, upon getting within 2 miles of my house,the CEL came on.

Car was due for service so I took it in and had the oil changed and aksed them to read the CEL. When they read it, I got the P1136 code. Also, they told me that when the removed the plastic underhousing, the A/C clutch was sitting on the top of the plastic housing. I have attached a picture of the A/C clutch to this thread. I talked with a friend who said that the two issues were completely unrelated.

My questions are as follows:

1) Which steps should I take to resolve the P1136? I purchased a can of CRC MAF cleaner to see if I have a dirty MAF. If that is not the issue, I was going to replace the MAF sensor and see if that fixes the issue. Is this the appropriate course of action? Any other recommendations?

2) How should I resolve the A/C clutch issue? I'm unsure if I need an entire new A/C compressor and clutch, or if I should simply replace the clutch. I've hunted around on the web and can't seem to find the part number for the clutch. At present this is my daily and I want to get this fixed ASAP but am unsure of how to approach the issue, and what I should reasonably expect a shop to charge for this. My friend (hobbyiest mechanic) also told me I should replace the accessory belt as well.

3) The passenger window (up/down) automatic sensor appears to be broken. I found a list of common problems and read somewhere that the battery can be disconnected for 30 seconds and this be a possible fix? I recall a few other suggestions on that website, but I can no longer find the website I was at (was a black background with red/white text, and the website owner had compiled a list of common TT problems and resolutions.

I'd appreciate any advice you guys may have to get this thing up and driving without problems. Thanks.