2.7t Swap Board

Installation Guide

All Applications


B6/B7 S4 using A4 radiator support: You must swap your power pins on the fan harness. They are reversed from one another from the factory. If you do not do this your fans will spin backwards, damaging the fan controllers and ArduAudi.

*Some applications may need to modify the reverse connector on the engine harness.


A lead is provided on the board for an AC harness. This signal carried by this lead is designed for a 3.0 AC compressor which may require custom AC hardlines. An AC harness will need to be constructed to adapt this lead to the compressor.

*Some swap boards have engine side brown pin 6 populated. This can be used as your AC lead. It is the same signal as the direct lead from the circuit board. You will need to populate or cut brown pin 6 on your engine harness. This feature is included simply to provide additional harness flexibility.