Joe100S

I'm wondering is anyone has found a good way to get the steering a little less light. Been driving the Porsche all month while the '93 S4 was in the shop getting a new suspension and the difference is pretty big between the cars, I'd love heavier steering on the Audi.

J

sk88erguy

https://www.audiworld.com/forums/sho...ct+Servotronic

Joe100S

This is a solution that completely eliminates the servotronic assist, what I was looking to do was reduce it to half.

J

scarman

It has been reported that the C5 servotronic relay makes the steering less sensitive, but I have no personal experience with it.

Joe100S

The Servotronic steering boost relay in the standard C5 is the 605 relay as far as I can tell, apparently later models use the 626 relay which provides lower boost.

Here's what the 605 looks like:

https://www.audiworld.com/tech/pics/elec60-605relay.jpg

I dod not see this in my '93.

Basically this 605 relay is supposed to make the car easier to turn at low speeds and while stationary. In reality, it boosts steering all the time at any speed. According to what I've been able to find this relay is an option in Europe known as "Servotronic Steering." Removing the relay just makes your car like a standard European specification allroad or A6 in those cars, however I have not yet found which relay is in the standard C4 S4. I'm still working on that. In the mean time I simply unplugged the steering rack and things are a lot better, although some boost at low speed would be nice.

I'll keep you posted as I learn more.

sk88erguy

I have to say I do like tighter steering as well, I really liked the stiffer steering of a 2007 Z4 my dads friend owned. I need to get the thicker 3-spoke steering wheel also.

Joe100S

I have unplugged the servotronic at the rack and it's not bad. Would be nice to have it at low speed, but it's not unmanageable. I don't do much parallel parking. I may wire in a switch if I don't sort out the relays.

eightyhorsepower

It seems light or "numb" steering is an Audi trademark.
Part of their charm ? ?

UrS4boy

All North America UrS cars got Servotronic (speed variable assist) steering racks controlled by a Control Module. To help you sort your issue, I have developed a Servotronic control module post. Click HERE If you have a PN for the "626" module, I'll add the info to the post.