Anyone got a S4 in Birmingham area, prepared to help me please?

[Thacker]

I have a servotronic fault which I think is the control relay? But the servotronic system has no diagnostics, so it maybe something else? Audi want £100 for the unit but I would like to try someones known functioning unit in my car prior to blindly buying one. Its a 2 minute job its located behind the fuse panel.

Anyone willing to help? It would be much appreciated.

Cheers! Ed

 

[Thacker]

The favour will be returned!

 

[hades-]

what number is the relay ?

 

[Thacker]

Its got 638 in white letters, it's bespoke to the S4 but any servotronic module would do, i think the settings are just different in comparison to A4 servotronics. I do have the audi part number somewhere.