N75: Meaning and Explanation

Hi.

I'm currently keeping a close eye on my BMR (Base Metabolic Rate), and at the same time, I recommended a VAGCOM diagnostic tool to a friend who recently bought a used Audi A4 with a 130 hp engine.

Are our N75 components connected with different polarities?

Because my BMR is at 85% idle, which completely fills the VTG (Variable Turbine Geometry).

The A4 has a 19% idle speed - and I suspect that it's also fully open at that point.

Greetings.
Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

dieselmartin wrote:

Are our N75 units differently "polarized"?

I think it's just a software issue.
"In the pre-tax calculation sheet, the values in the 'LL' section are usually the highest. Conversely, the A4 (like most 1.9L VTG MSG models, as far as I know) inverts the TV signal at the diagnostic port."

Thank you, Ulf.

I thought it was probably just software.

I could only remember your idea about the "100-N75 in a graphic."
And that simply doesn't make sense for my tractor.

For me, a general rule is: More N75 valve opening -> more boost pressure.

Therefore, the question is...
Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

dieselmartin wrote:

For me, a general rule is: More N75 -> More boost pressure.

Yep, your MSG outputs the boost pressure signal with the correct polarity.

The Leon is outputting the TV signal inverted, which might be causing a brief moment of confusion.

Best regards, Jochen.