A3 8P ESP Stage 2 Tune

Hello!

Here's the translation:

'Yesterday, with my A3 2.0 TDI 8P, as soon as I turned the ignition on, nothing worked: the radio was locked, everything was flashing, the clock displayed 0, etc. - and since then, the ESP light has been constantly on. However, I was at least able to drive normally and get to the dealership. The technician mumbled something about 'ESP deactivation level 2' due to a voltage drop. I'll find out more on Monday, but I'm impatient does anyone have any ideas about this?'

Hi,

The brake control unit is reset to its default settings through a guided troubleshooting process and then re-calibrated. Usually, only the steering angle sensor is affected. If the battery is discharged and a start-up attempt is made, it loses all its values and does not initialize automatically. If you simply disconnect terminal 30 (i.e., disconnect the battery), the warning light will also illuminate, but it will turn off on its own after driving in a straight line for approximately 100 meters.

I had a similar problem with a customer last week. I don't know what Audi expects to achieve, because how is the customer supposed to know that the battery is dead if the ignition turns on normally, but the starting process fails, and that causes these kinds of errors. Probably, it's just that the customer will come and spend their money, especially if they are outside the warranty period.

Best regards, Christian.

'Thanks! But can I still drive normally and safely until Monday, right?'
Okay, so the ESP system isn't working.

The friendly service technician suspects a defect in the Concert II system, and some vehicle identification numbers are affected. We'll see.

or do you have any ideas about what might have caused this voltage drop?