fEArmE

Hello guys, I just picked up my 2013 Moonlight Blue 3 days ago. Drove to NYC and noticed very rough upshift from 1st gear to 2nd. This happened in heavy traffic in which the car is rolling at about 2-3 mph, I lightly stepped on the gas pedal, then released (due to stop and go traffic), but at the same time, the transmission upshifted to 2nd gear. The experience was similar to someone just rear ended me.

Has anyone experienced similar issue?

GiantEli

Check the S4 forums...this is a common issue with the S-Tronic. There are behavioral fixes, but no technical ones.

PJRed2008

I haven't seen this in traffic, but have at very low speeds in a parking lot, mostly when the car is cold.

Using sport mode might help, 1st and 2nd are so close together, it also might help to go to paddles and lock in 2nd.

fEArmE

Sport mode pops up in my mind too.... I guess this is normal...will bring that up to the dealer and see what they say... Pretty easy to replicate too...thanks.

irenesbob

First - this is an 8-speed Tiptronic - so the comment about the S-tronic would not apply, they are totally different transmissions.
I have a 2010 A6 with a 6-speed Tiptronic tranny and have experienced this a lot. My dealer has done several tests and the final conclusion they reached is that this is an adaptive transmission and unless it is trained to adapt to a more aggressive driving style it will be confused if an old fart driver like me suddenly presses the transmission at a point where it had been trained to think I was going to be going slowly, so it hesitates and basically chokes itself back to the lower gear then quickly up to second, so it feels like a “thunk” – like you say being hit in the rear. I don’t know if this is blowing smoke, but that is what I was told. I still have it 28 months later (today in fact stuck on the Major Deegan expressway at rush hour). Anyway, my 2 cents. I don’t like this and it is something making think about a different brand of car when the lease is up – just thinking at this point.

wolverinewizard

Yup, I have the same thing happen. If you search around, there's a large thread here that discusses it

fEArmE

Hopefully this will go away as the car learned my driving style. I dont think i see smoke coming out. But i will definitely check with the dealer.