Talbot

Are you suggesting that a car that's capable of achieving 0-60 in 4.4 seconds has enough 'lag' at a normal launch (even in "D" mode) that pulling out into traffic could be dangerous? That's what the OP was suggesting.
My B5 twin turbo (K03) S4 had no such issue, and it had 100 less HP and 75lb-ft less torque. This does not smell like turbo lag to me.

The only fear I have when I'm pulling out in traffic is running up the *** of the person that passed in front of me.

Glisse

The car is already on boost by the time you have gone a couple of metres. It has noticeably more low down torque than the B8 engine. The ZF transmission is not as sharp as the S tronic transmission. The map is crappy - seems slow on the up-change and cutting too much torque. But in S mode, it is still quite quick from a standstill. The OP's car sounds broken. D mode is useless - think of it as an overdrive button. It is designed purely to keep the engine below boost as often as possible. But every new car is doing the same thing.

It could be an ECU problem: engine ECU, transmission ECU, chassis ECU can all cut torque in certain situations. Could be a transmission fault. But if he drove an S5, and it did the same thing, maybe it is a fuel problem. But there's definitely a problem.

The OP is either in the US or UK (miles...). If the UK, make sure you don't have the hill/start assist button on if you have this option.

Whatever, to have a dealer tell you to ring Audi to find a solution seems appalling. That's their job. Get a new dealer.

Talbot

I'm going with UK since he mentioned roundabouts.


Totally agree.

StormRyu

What about that word gives it away?

Glisse

jjsC6

I don't even know how to answer your question. I'm simply saying that from a dead stop in a straight line, just flooring the accelerator, I felt turbo lag. I have a long history with both factory and aftermarket turbos going back 35 years. That is my opinion based upon my experience. In today's world of electronics, fuel cut-off, torque management etc, it could be one, or a combination of more than one reason.

superswiss

Let me throw in one more possibility. If you are gunning it from a stop into a turn, you will have the ESP proactively holding back the horses to avoid a spin out. This happens to me in my RS5. I have this busy merge near my house and I often have to gun it, otherwise I'll be sitting there twiddling my thumbs for a while. It's accelerating into a left turn, immediately followed by a right turn. The car with ESP on does not accelerate at full bore for good reasons, because if I put ESP in Sport mode and do the same maneuver, I'm going sideways through the merge with all four tires scrambling for grip. Ask me how I know :-). And that's with less off the line torque than the S4 engine produces.

Talbot

I'm.not refuting your history or experience, nor am I suggesting turbo lag does not exist. I'm simply trying to help maintain the context of the original post - one where he feels his car is laggy to the point is is dangerous to pull out into traffic.

jjsC6

I understand and appreciate what you are saying. Here is why my response. First of all, the lag is never as long as it seems like it is. Everything we do in life is measured against expectations. When you mash the throttle on a 369 lb ft sports sedan you expect it to haul butt and leave everything in its dust, including oncoming traffic. If there is a .5 second delay you have an "oh crap" feeling. But if .5 seconds is enough to get you into an accident you were an idiot to pull out anyway. Does that make sense to my response?

Tatge

I had a lag/hesitation issue in a Volvo XC-60 3.2L

I would stomp on it and it would think about it, and eventually pull well. I didn't think much of is since it was my wife's car and not my daily driver until I took it on a road trip with the family. Then I was afraid for my life. Eventually it started throwing codes and telling me to "reduce engine speed" at low RPM which was uber weird. Dealer couldn't find anything. After I had a XC-90 loaner with the same engine with bigger *****, I cried BS. The dealer brought out a Volvo engineer who took a look and they narrowed it down to a loud oil pump setting off the knock sensor. No codes mind you, just something not right. They replaced the oil pump, power and responsiveness were dramatically improved and the car never had another problem until the garage (and house) flooded from 26" of rain in 16 hrs.