Do I have servotronic relay?

[ZsoltA6]

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

[royclark]

Welcome to the forum.

Your 2005 A6 is not a facelift model. Face lift is from reg 58 plate to 2011, (that is from 2009 to 2011 model years.)
Pre-face lift models went from 2005 to 2008.

[ZsoltA6]

Hi Roy and thanks for replying...plus the warm welcoming. You're right, my one is a pre-facelift sorry. I have the LED at the back and DRL lights to the front though has been done by the previous owner. I see that you have the same sort of car? Any idea about servotronic?

Many thanks

Si

[royclark]

Hi Roy and thanks for replying...plus the warm welcoming. You're right, my one is a pre-facelift sorry. I have the LED at the back and DRL lights to the front though has been done by the previous owner. I see that you have the same sort of car? Any idea about servotronic?

Many thanks

Si

No, sorry.
I think it has something to do with making the steering heavier or lighter depending on the speed.

[gupsterg]

Welcome to VWAF!

You don't have servotronic relay but a valve, view info in this post.

[ZsoltA6]

Thanks for the info gup. Hopefully not the solenoid value failed. Is that the small valve attached to the rack? That's the solenoid? I think I have to take off the rack to replace the solenoid as there is not much space to work around. The other day I unplugged the wire to make sure the electric connection is good to the rack. It took me 2 hours. I'll plug my computer on to the car at the weekend hopefully I'll know more.