audiquatro75

I used to have a 99 A4 avant that I sold to my friend he put a lot of dents on it and could buy it back really cheap.

I was wondering if I get a 2.7t from a S4,A6 if it will fit into this car.It's a 5spd. manual "will 2.7t bolt into this tranny?"
Any problems with wiring if I get the 2.7t engine harness,ecu?


Thanks

quickaudi:STFA

you could, but it's a lot of hassle

Vier Glühende Ringe

you might have issues with the transmission wiring. Such as the reverse light switch and vehicle speed sensor. Engine speed sensor may not read right. Or it maybe perfect. Do it, I'm sure there won't be any issues that cant be resolved.

S4_Cinci (I S'edTFA)

The torque level of the 2.7t is significantly higher than the 2.8L na engine. Why would you want to take an old Audi and make is even more unreliable that it already is?

Phoenix33759

You will have to deal with the gas pedal. The s4 is throttle by wire, the 2.8 has a cable. There is a way around it purchasing a kit to convert the throttle on the 2.7t to cable.
Good luck!!

audiquatro75

everything just plugs in? Did you use a S4 instrument cluster or just stock A4?

Thanks.

Phoenix33759

The only problem was the gas pedal. I had to find the wiring diagram for the s4 and run wires to the ecu with a new s4 gas pedal.
I will be doing the swap again...but this time with more power!! It will be my car this time.

mrnitrous422

its from 2001 A4 1.8t. I have the whole dbw pedal assembly sitting in a box.

audiquatro75

Thanks , but firs of all I have to find an engine..

jsbell_87

don't hold me to this though but i've heard of shops giving 2.8's 6spd. and i would think they would just bolt together, same block and all. and fyi 5 and 6 speeds have same final drive ratio.