[Regulus]

Would that be possible? I mean, I bought the keys from Audi.

Today I remembered that the vacuum might be an issue. And I have one fault:

Adress 35: Centr. Locks Labels: 8D0-862-257.lbl
Part No: 8L0 862 257 N
Component: CV-Pump D06
Coding: 13130
Shop #: WSC 02324
VCID: 40CC92CF42236D4467-4EC8

1 Fault Found:
01367 - Central Locking Pump Run Time Exceeded (Likely Leak)
35-00 - -

I found a vacuum hose that isn't connected anywhere under the hood front left corner. At first I thought that had to be the problem. But I discovered it is for Cruise Control? It originates from the vacuum reservoir on the left side. And ends up near the Vacuum pump in the left front corner. But I can't figure out where it is supposed to be connected either. There is no T-connector as far as I can see. And it does not fit to the pump.

As for the central locking pump, I checked that a month ago and couldn't see any fault. I wish I could find the layout of the vacuum lines in my repair document. There seem to be no good schematics on the web either