A8 Parts Forum  

Go Back   A8 Parts Forum > A8 D2 > D2 - Axles, Brakes, Suspension and Steering

D2 - Axles, Brakes, Suspension and Steering Brakes, Springs, shocks, steering racks, steering columns, suspension arms, wheel hubs etc.

Reply
 
Thread Tools Display Modes
  #1  
Old 5th September 2012, 07:00 AM
SilverS8 SilverS8 is offline
Senior Member
 
Join Date: Jul 2011
Location: Norway
Posts: 362
Exclamation Power steering issue (rack worn out?)

Hi all.

I recently replaced all control arms except the tierod ends(as they seemed pretty good and the fact that it triggers a new wheel alignment)

All has been goo until the other day. Suddenly i have a "free" spot when turning the steeringwheel at standstil and low speeds. I can move the steeringwheel about 3-4cm without the wheels moving(or at least its minimal movment)

All control arms checked to rule out any loose parts.

To clarify:

-Engine off: Everything is solid, no slack/free spot
-Engine on and speed under 20 mph i can feel this free spot
-Over 30+ mph it all feels perfect.

I would think that f the rack is worn out i would feel the free spot when engine was off?

There is no noise,leaks or anything that would explain why this has suddenly happened.

Any info would be appreciated... Its MOT time within the next 3 weeks...

Jan
__________________
2003 Daytona Grey RS6
2000 Silver S8
2005 A6 1.8TQ Premium
1993 Audi S4 2.2 TQ MTM 330 (my first love!)
Reply With Quote
  #2  
Old 5th September 2012, 07:32 AM
47p2's Avatar
47p2 47p2 is offline
Senior Member
 
Join Date: Jan 2012
Location: Scotland
Posts: 1,667
Default

Any clunking noises when this happens?
__________________
.





Nite Blue 3.0L SE Quattro
Reply With Quote
  #3  
Old 5th September 2012, 08:51 AM
SilverS8 SilverS8 is offline
Senior Member
 
Join Date: Jul 2011
Location: Norway
Posts: 362
Default

Quote:
Originally Posted by 47p2 View Post
Any clunking noises when this happens?
No noise of any kind..
__________________
2003 Daytona Grey RS6
2000 Silver S8
2005 A6 1.8TQ Premium
1993 Audi S4 2.2 TQ MTM 330 (my first love!)
Reply With Quote
  #4  
Old 5th September 2012, 09:19 AM
47p2's Avatar
47p2 47p2 is offline
Senior Member
 
Join Date: Jan 2012
Location: Scotland
Posts: 1,667
Default

You need to get under and see where its coming from
__________________
.





Nite Blue 3.0L SE Quattro
Reply With Quote
  #5  
Old 5th September 2012, 01:38 PM
ainarssems ainarssems is offline
Senior Member
 
Join Date: Aug 2010
Location: Rushden, Northants
Posts: 3,850
Default

Is it moving freely or do you feel springy resistance that returns it to middle position of free spot? There are springs that centres it. As you turn steering wheel spring is slightly compressed and opens hydraulic valve for power assistance. If there is no power assistance like with engine off and high resistance on wheels like on standstill you can turn steering wheel by quite a bit overcoming spring resistance before wheels start turning but as soon as you let it go it returns to centre position of free spot. If the springs are getting weak, stuck or broken this would allow for more free movement. Or if the power assistance is getting weak you would feel it more when driving. Can't really judge situation without having a feel myself but if it appeared suddenly it would suggest that something is faulty.
__________________
Currently 8less
2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D

8 history:
2006 A8 Sport 4.2TDI quattro SOLD,
1997 S8, reached end of life with gearbox failure
Reply With Quote
  #6  
Old 12th September 2012, 12:59 PM
Dezzy's Avatar
Dezzy Dezzy is offline
Senior Member
 
Join Date: Sep 2009
Location: N. Devon
Posts: 2,715
Default

I'd be having the car tracked after replacing all the arms
__________________
1996 A8 4.2 QS. Bose, Solar roof, um...um... rally sport towbar. Now gone to a new home as the Traders 8.

Bright yellow bus o love.
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 02:19 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.