How does one find out if their A4 is DBW? also... i have noticed that when ordering parts there is a ATW motor, an AEB motor.... what is the differences and how do i tell?

 

you have an ATW.

 

can i ask how you know that.... and also where i would find it myself.... and is ATW a DBW or are they not associated? im very confused about this DBW thing... i dont know much about it

 

best way, look at your engine. look at the right lower side of the engine and you'll see the code.

let me find a pic.

 

there u go

 

DBW= drive by wire

 

Look at your throttle body, if you see a plug-in like the one circled in red, then it's DBW. Also here is a pic of what the DBW unit looks like inside.

 

here is the break down..
96-99.5- AEB NON DBW
00-ATW DBW uses a different head with smaller ports and has a secondary air pump (which is yag by the way) same bottom end as the AEB also has a different ignition module no more ICM
01-AWM- even smaller ports, and different bottom end, almost positive no more forged pistons- not positive.. and its DBW

there are more differences but thats the basics i dont know much about the 01+ engine codes..

 

is DBW a bad thing? i mean i know it is there for a reason... but is there any draw backs to having DBW as opposed to nDBW?

 

Is there any way you can convert a Non DBW to a DBW? Just wondering. I like the feel of the DBW pedal more.

Josh