Hi everyone,

I have a 2005 facelift A6 3.0 TDI S line. I've read a lots of threads about this servotronic but I cannot work it out. My problem is that the steering is always the same stiff whatever speed I do. As I have 18" tyres the parking is quiet hard especially for my wife.
So fluid is good, pump doesn't do any weird noises and when the car is on move I have no problem with steering. It seems the speed dependant servotronic doesn't work. Like it stuck at the speed at 70mph.
I know that the servotronic was an option when the car has left the manufacturer so I went to Audi and asked them if I have this option. They get the chasse number and got back with the answer YES, I have servotronic, although they call it differently.
So I didn't find the 605 or 628 relay anywhere. I've looked at all the possibilities but nothing I have a drawing from SSP 324 and I can't see any relay there. Does that mean I have no relay just the solenoid valve and the J520 Module?
I am a bit confused now so if is there anyone out there who could help me out, would be really appreciated.
Many thanks in advance

Si