S5 Automatic to S4 Automatic
 

Don't ask!!! Just answer the question if you know it.
I don't want a bunch of resposes---do the 5 speed swap!

All I want to know is does the S4 Auto fit an S5 Auto equipped car? If it does what does it take to make it work?

ahh i was running around with an 86 trany in my 90, so yeah. Or at least they told me it was an 86.

can I get some more feedback please...I need to let this guy know

thanks

bump.

The wiring harnesses are different.

Rob

I knew that the wiring would be different because the S5 use the electronic assistance while the S4 is all mechanical...I really just need to know will the S4 auto fit where the S5 auto. Are the driveshafts any different? Are there any mechanical issues that would keep it from fitting/working?
In other words, if I was to drop the S5 auto and put the S4 auto in its place, would I be able to drive it without having to fabricate anything (minus the electrical stuff)?

uhhh???? hummmmm????
WELL, WELL, WELL...Well what???

bump

someone should know this!

The physical dimentions are the same. It will bolt up...BUT:

The Shifter assembly on the S5 is way different. You'll have to use the S4 shifter and center console.

The S5 tranny CPU is going to have a shit-fit trying to figure out WTF.

I wouldn't attempt it. The car will either be in limp mode or will not shift.

nashman69g

you have posted 4 times in a roe, Dont do it again thats a waste of the severs speed, Why not edit your post, and yes, a S4 CASE will bolt up there fine, its everything else that you should be concerned about.... like plugs, hookups and all...