Dubinout420

So I have a 1997 Audi a4 quattro 2.8 auto car drives great no problems with the trans woke up Togo to work car would not go in reverse through out the day I lost all my gears to it to a shop near my house they said the transmission range sensor was eroded and had water in it and also that my tcu would not talk to his computer ..I bought a rang sensor got a used tcu he said all u had to do was plug the tcu in and it configure it's self now he put the parts in and car won't shift into gear. Do u have to code the new tcu even tho it came for
Same model and year car??and how do u do this thanks

GTA_Driver

Is your new TCU exactly the same part number?

You will need VAG-COM to figure out what's happening.

Dubinout420

Yea same part num same bosh num exact match. tcu came out of exact same yr model engine everything.i got the car towed to another shop guy at the first shop said he did not have the software to code the tcu and said i would have to take it to audi i called around luckily found a guy that worked for audi for 8 yrs has his own shop and said has tools and software for audi so hopefully this guy isnt bull****ting and knows vw. has any one ever had this issue or knows bout it.does he use the vag-com to input the codes??

zohare

I'm tempted to buy a "mechanics special" with the same issue. Forward gears work ok, but no reverse. I need to know if I can fix the problem BEFORE I buy the car, without spending anymore than a few hundred bucks. Is it possible?

Dubinout420

Yes it is just the loss of reverse sounds like your transmisson range sensor is bad witch is most likely the problem iv researched and seen alot of people lose reverse and when they put the range sensor on it is fixed..the only problem is that the range sensor is a dealer part only and is 530$..now i lost all my gears because the transmisson computer shorted out