Hello, Very long story but I tried to get to the point with my issue.

A little over a week ago I was heading to the office, the 1st thing that happened was the AC Blower just stopped. 2nd thing I noticed was the Oil Temp gauge dropped down to nothing. Once I got to the office I usually back into my parking spot. The car went into Neutral but not reverse so I pushed it into the spot. It did go into park and hasn't come out of park sense then. I got it towed to one of only 2 places in town that will work on Audi. Car is approaching 285,000 KMS runs very well except for these issues.

Are these 3 issues related and even though the shop hasn't fixed it yet he thinks it maybe the TCM. I've seen these forsale on Ebay but they are all used. Can mine be tested to see if that is the issue or something else? I forgot to mention, No Codes on the dash. Would plugging in a new TCM need to be programmed or will it work after being plugged in as long as I find the exact same matching numbers?

Incase I need or want to find a transmission, what other year & Model of Audi is compatible with mine if any or should any transmission shop be able to rebuild this one?

I don't want car payments so I don't mind putting money to keep this car that I really like running tip top. But of course no one likes throwing money at several things before finding the actual problem.

Thanks in advance for any help.