Hey,

I got a friend that swapped from multitronic to manual on a A4 1.8T B6 - the mechanical part was successful, but the car doesn't start (don't even crank).

I tried to help him by coding through VCDS, but it keeps sending error 31 because the ECU doesn't accept the 5MT parameter.

By researching on some forums and through here in NefMoto, an ECU reflash using the 5MT SW could solve the problem.

Some questions that are not very clear:

* Do we need to do a physical jump over the Neutral/Park relay or the reflash using a 5MT map would solve it?

* The ECU code is 8E0909518Q - the 8E0909518AK ECU would allow me to code through VCDS with no problem, but it isn't available here in Brazil.

* Do you know if the 8E0909518Q (suffix -Q) allow me to reflash with another map (5MT) to solve the problem?

(I still could not check the SW versions, but will update here soon)

Thanks in advance

Hmmm, that is a good start. Do I need to worry about the immo if using a manual .bin file from another car/ecu?

- Bridge the park/neutral relay (this is why it doesn't crank)
- Reflash ecu with manual software
- Add switch to clutch pedal and wire it to ecu
- Wire up backup light switch from gearbox
- Recode instrument cluster and abs to manual
Should be it for electrical side of the swap. 

Did you place the file using nefmoto itself?

the topic is from last year, but just to complement, and help those who need it, I did some tests and discovered that the file 8e0909518P is compatible with the final 518Q ECU, I also tested the 518M, at first it worked, but when turning off the ignition the ECU blocks and it is necessary to reflash via bootmode