I jsut bought a 1993 Audi 100S..My 1st Audi...The car shifts (Auto Tran) really hard from 1st to 2nd..2-3rd isn't as hard and the funny thing it only does this when the car warms up. It shifts perfect when cold. I have had the tranny serviced and flushed out. STill same problem exists. I have heard numerous ideas to why this is doing this...heat sensor... where is that? ...computer problem...I have a extra computer module....I am really torn cuz I love this car otherwise...just need someone to direct me from there advice...please help...ty

 

welcome to the forums...


moved your original post over to the appropriate section...
hopefully some of our "tech certified" inhouse techs will spot it here.
good luck !

 

someone please reply with some advice.......

 

don't really think it has any thing to do with teh temp sensor ... i woud guess that it's an internal tranny problem

 

Check the electrical connector at the tranny for corrosion and/or damage to the wires.

 

Try disconneting the battery for 10 minutes to clear the transmissionTCM coding.TCM is Transmission Control Module. DSP is Dynamic Shift Program - It is what learns your driving style, road conditions, etc. and adjusts the shift points automatically.The TCM controls your transmission shift patterns. I have the same problem with my 92 Audi 80 4 speed automatic. If you have access to a VAGcom, then you can reprogram your transmission to shift smoother. You could also take it to a dealer who has a VAGcom, VW, Audi dealer and have them reprogram the tranny. Only takes about half hour. The only problem with disconnecting the battery is at first, your transmission seems to behave better, however once the fuzzy logic in the DSP learns, it reverts back to the way it was before you made the change. Sometimes mine shifts beautifully, the way it should, then the next time I start the car it shifts rough and erratic. It can be very frustrating. If you take the car to someone with a VAGcom, Tell them to turn the DSP "Off". You will be a much happier camper.