William

Can an ECU from a Quattro car work on a FWD car on 2000 DBW?

Johnny Bravo

from what i understand YES, you just have to have the Same tranny.

zain

At least on my 99 this is true. never worked on one of the DBW cars.

A4agarwal

They told me the ECU was coded differently for manual vs. Tip but it was the same for FWD vs Quattro.

This was confirmed by Garrett himself. I spoke to him minutes before swapping my ECU to confim I had the right one.

This is for a 99.5 ECU. I don't know if the new DBW are the same.

Sachin

OverPSI

See my previous post.....<ul><li><a href="https://www.audiworld.com/forum/m/a4/msgs/338182.phtml">https://www.audiworld.com/forum/m/a4/msgs/338182.phtml</a</li></ul>

William

I have a 2000 A4 1.8T FWD MANUAL

My ECU part # is 4B0 906 018 P, the P BOX

However, according to:

https://www.audiworld.com/forum/m/a4/msgs/338182.phtml

A P box is for a Quattro with Manual.....

What??? why do I have a quattro chip in my FWD car?????

OverPSI, any comments or help appreciated. Thanks.

juliem

but P box was used for 99 NON-DBW cars so your 2000 (which is DBW) won't work as I understand.

Quattro vs FWD on pre-DBW is just a vagcom coding step change. I've done it a couple times now.

But for DriveByWire cars, I don't know...

Todd/A.W.E.

The BH and BG are for Passat, which has ASR. Swapping between these boxes will cause problems.

Technically, you should get your P ECU recoded with a VAG tool. Recode feature: 07201 for Quattro, 07001 for FWD.

However, if you don't, there will not be any real issues. The coding seems to have a minute affect on traction control (via ABS).

William

thank you for the tip, i understand now