serpentine belt replacement - pump adjustment

hello

Please don't think I'm completely incompetent, but yesterday I had to quickly replace my serpentine belt – the front tensioner was already starting to fail. And since I had all the parts in the garage, I decided to do it on short notice; nothing much can normally go wrong.
So far, everything has worked perfectly, and the car is running flawlessly. However, I would like to understand some things myself during the follow-up process.

Basically, I understand the theoretical approach with setting (using a dial indicator and optical sensor) – at least as described in the wiki or in instructions.

"However, I made it easy for myself; I marked everything, unscrewed the rollers, put on the new belt directly, and simply screwed the rollers back on – and that was it. Don't ask me how the static adjustment looks now, but after two adjustments, I got the dynamic setting pretty good. To my surprise, the engine is running perfectly fine. Let's see how the new belt performs; heading into winter, I'll probably go back to an earlier start time to make it easier for the car to start."
Since my information on this matter is purely theoretical, I would appreciate it if you could evaluate my theory about this issue.

Code:

statisch ist erstmal die grundeinstellung, die man mit dem nockenwellenrad macht. diese sollte bestmöglich getroffen werden, damit man mit den spannrollen mittig ist - um evtl. später mal toleranzen auszubessern. wenn man nach dem tausch des riemens mit der spannrolle schon ganz unten ist, und man später uu. noch weiter runter muss - wäre es dann nicht mehr möglich.

According to the T4 Wiki, for example, it states that the adjustment is made dynamically using the rollers (with an Allen key), which also seems logical to me.
So, if I'm now perfectly centered based on the measurement, and the rollers also have enough clearance in both directions, it seems like I might be lucky and can leave it as is?


Hello.

Okay, I'm ready. Please provide the German text you want me to translate into English. Just paste it here, and I will give you the translation.

dieselschrauber wrote:

/viewtopic.php?t=3195

"Many thanks, this is definitely helpful for understanding the theory – I need to read through it carefully at home..."

Basically, I have the same mechanical part as in the Audi, but electronically, I don't have the ability to access it via VAG-COM.
The control unit is likely very similar in design, but can only be diagnosed with specialized tools. I'm therefore very happy that I was able to purchase BrickDiag as software – here's a Screenshot showing the configuration options:


Currently, my car is showing a fuel consumption of -0.5 (likely meaning a slight improvement or error), and the fuel temperature was also slightly warmer, but it's centered correctly for a new belt.

Here's the translation:

"The question I still have is this: If this dynamic measurement is correct, but the static measurement isn't 100% accurate, could that become noticeable in a negative way under different circumstances? For example, at a higher RPM?"

"It's not that I expect everything to be working perfectly just because this program shows it, but what if the car is running completely wrong in certain load ranges?"

Thank you all.

Hello.

It doesn't make itself noticeable. The static setting is used when there are no markings, to ensure that the motor starts at all, which then enables a dynamic adjustment.

"Thank you so much! It's always great to be here and not feel like an idiot when asking questions, even if they might seem silly sometimes. I mean, it's better to ask (especially since we haven't learned it yet) than to risk causing damage."

The pump is running perfectly, as expected.

Hello.