I have a 1997 Audi a4 1.8T quattro with an automatic trans. I just bought it about 2 weeks ago and I'm still learning a lot of Audi/VW specific tech stuff, but I fancy myself a more than adequate amateur mechanic. So here's my question:
A few days ago it didn't go into reverse right away, but after a few seconds went into gear. Yesterday It started doing it consistently and taking longer to go into reverse. Sometimes it shows it's in Neutral before reverse engages, but not all of the time. It seems to function in drive just fine, with the exception of sometimes going to about 3,000-3,500 RPMS while driving gently before up-shifting at about 45-50 mph (I'm not sure if thats normal or not), and all of the gears are NOT lit up on the gauge cluster when in drive. Twice it's made a bit of a clunk when shifting at low speeds, but otherwise seems to be smooth. The downside is the tires make some noise (the wheel bearings are fine) and could hide a quieter noise or vibration.
It has been rainy and wet, and I'm hoping like hell someone will tell me it's Neutral Safety Switch (whatever Audi calls it at least) on it's way out, but I'm worried it's the trans itself?
If it is the trans, are there any special tools I will need to swap it? Are there any special factors to consider when looking for a used trans and far as it fitting my car, and will I need some kind of VAG-COM to change any values?
I looked at Ross-tech but it's kind of pricey, Is there any VAG-COM for under $100 that will do anything I'd need it to on a 1997 A4?
Thanks a ton for any help you guys can give me!