Hello guys,

I have made some research here about those ECUs and I wanna check if my assumptions are right (or wrong )

* ME7.x can be flashable through OBDII using a KKL cable (FTDI) and NefMoto's software

* M3.8.2 is used on drive by cable and has a non-flashable memory, so, it can't be flashed through OBD/BDM

* M3.8.3 is used on drive by wire and has a flashable memory, so, we can write through OBDII. To read, we need to unsolder the chip.

Assuming that this is right, I got a question:

* There is a A4 V6 2.8 30V here in my country that I was looking to buy to be my first remap lab. The ECU is a M3.8.2.

I was thinking of swap the M3.8.2 for a ME7.5 - I know it will be time consuming and will probably require a lot of knowledge, but since it will be my lab I guess it will be a great opportunity to learn.

The other option is to skip all those adaptation work and buy direcly a car with ME7.x ECU (1.8T A3 with DBW (180hp))

By your experience, what path would you choose?

Oh, I guess I wrote it wrong. It was supposed to use ME7.1.1 from V6 2000+, not ME7.5 from A3.

So, A3 1.8T 180hp uses a ME7.

Clarified!

Here in Brazil I found some that uses ME7.1.1, but I will pay attention when looking for one.

I will research more to see about the mods necessary for the ECU swap.

Don't bother, that motor is a total dog.

Could you point some bad things? I am still in research to decide if it would be a nice car project or not.

The focus on reflashing, initially, would not be full performance, but having a practical sandbox to apply my knowledges.

You can do simple things like vary fueling and timing but you'll never get more HP out of it from a tune. Like all of Audi's NA motors (except for the v10) a huge waste of time and effort on everyone's part.