Hi!, I come from Spain and I am trying to do a swap on my 2000's audi a4 b5 1.8t quattro, APU code (block 058).

The donor vehicle is a 2000's A6 C5 1.8t, with code AWT (block 06B, vvt + wideband). I have the complete engine, complete harness and control unit. I have already adapted all the physical differences between a 058 and 06B block (coolant pipes, etc) and I have cancelled the immobilizer of the engine control unit (ECU).

Both engines are with electronic throttle, my question is the following:

Is Plug & Play the connection between the colored connectors of the harness to the colored connectors of the car? and... Do you know where I can find a pinout or something similar for the colored connectors? I have only found for a4 b6 from 2003 onwards (which are not the same).

APU colored connectors of the harness:

APU HARNESS.jpeg

AWT colored connectors of the harness:

AWT HARNESS.jpeg

Colored connectors of the car:

CAR HARNESS.jpeg

And the car with both engines :

BOTH ENGINES.jpg

Some wires that are in the APU harness are not in the AWT and vice versa, only the black connector is exactly the same in both harnesses. I understand that the differences between one and the other are the management of the 2 lamps and the ignition without ICM isn't it?

If you want, when I finish the SWAP I make a post of the project. My idea is to end up with a A4 STW look.

Best regards and thanks!