B8 s4 coolant pump 100% cycle mod

[Deo]

Hi, I want to do the coolant pump mod on my b8 s4 but with a switch. Is this straight forward and has anyone done this? Cheers

 

[Cerbera9]

Yes its easy to do. Some tunes such as MRC have this coded in so no need to actually cut any wires.
https://www.audizine.com/forum/showthread.php/718959-S4-B8-OE-coolant-pump-100-duty-cycle