Problem...can't find the solution..pls HELP me

Wiring, schematic, electrical diagrams, torq settings, parts info, error/fault codes, full assembly/dissembly, service instructions and a lot mor eetc are basic contents of these online books they here on this website https://big-manuals.com/

Google it - Check this LINK. If your horn or other steering wheel controls do not work, it's likely the clockspring - the device that transmits the inputs from the steering wheel into the wiring harness under the dash. Pray it's not, otherwise your Audi tech will be buying himself a new S4.

Td

It is imperative you use the correct fluid in your Audi tiptronic transmission. Look in your owners manual for the correct fluid. If you do not have an owners manual call your local Audi dealer or better yet drive to one and purchase Audi Pentosin A/T fluid from the dealer. Do not use Dexron III as it is not designed for the Triptonic transmission. A transmission is very expensive to replace so do not take any chances and just buy your fluid from your Audi dealer even though you may pay a little more. That way you are 100% sure you are using the correct fluid.

need to get trans checked by knowledgeable machanic,maybe its not engaging because the selector isnt working,big money if incorrect diagnosis,but does need to be looked at by expert

At the bottom of the automatic gearbox (tiptronic) you will find 2 threaded plugs on below surface. First (in front of the car) is for emptying, and second is for filling up. Tightening torque is 24 Nm. Please Rate my Response! Thanks!

It is not recommended by the manufacture to change it,They say it is lifetime fluid.

The transmission shifts up only to the 4th gear, tiptronic is not working and the dispay with

hi,i'm ck .my audi c5 2.4 model 2001, when put on D while driving, it go to neutral?

Changing the computer doesn't sound right. Most likely a bad oil temp sensor. Make sure you are using the recommended weight (synthetic) oil.

Your car is in limp mode. The trans control computer is located under the carpet in front of the forward passenger seat. You probably have water in the control box.