Audi A6 2.5 TDI 110kW - No power and poor shifting

Evening everyone!

I have a problem!!!

I will post more detailed information about the car tomorrow, including things like the engine code.

Now, let's get to the problem:

"There's a constant error in the error memory related to the intake manifold pressure. I'll post the exact error code tomorrow!"
"When accelerating, the tachometer sometimes gets stuck at around 3000 RPM, and acceleration stops. It doesn't accelerate any further, and if it does, it's with great difficulty. If you release the accelerator and the automatic transmission shifts, you can continue driving, but with very little power. However, it eventually recovers, and the car drives normally again. I've noticed that when this problem occurs, if I pull over, turn off the engine, and restart it 2-3 times, it runs normally again. But the problem reappears after a certain amount of time. Another thing is that the automatic transmission, which I believe is a 5-speed, shifts very poorly when it's running. It stays in each gear at half throttle until the rev limiter, around 5000-5500 RPM, before shifting."
Well, it's not my car, but I don't think the shifting is normal!

I already swapped LLMs and got a cat today!
Apparently, there are already two new converters included in the Audi models!
Audi says new turbo and new intake manifold!

The transmission is not reporting any error codes.


I'm looking forward to hearing from you!

Best regards.

Okay: first answer:

What exactly is wrong with the way you write? Aside from the errors, how about using capital letters?

Das du die Suche noch nicht benutzt hast fällt auf, den Fettnäpfchenbeitrag hast du auch nicht gelesen. LSure, here's the translation:

"eider."

"First, gather all the data and then post again. Unfortunately, this approach isn't helpful. This is your first post, so I kindly ask you to read all the terms of service and try to adhere to them. If you do, you can be sure to receive help here!"

I can tell you one thing right now: when the engine starts working properly again, the transmission will work again too. So, focus on the engine.
Lack of power and only reaching up to 3000 RPM usually indicates an incorrect setting of the guide vanes (on the turbocharger or variable geometry turbine - VTG). Check if the VTG engages fully at engine start. If not, check the vacuum hose for leaks. This could be a hose or a valve. In the worst case, your turbocharger is faulty, but that's not necessarily the problem. Often, it's just the vacuum actuator that's broken, but you won't be able to buy a replacement from VAG (Volkswagen Audi Group). If that's the case, you'll have to find one on eBay.