[s-cars] Suspension bushings and tranny mounts

[Bob Rossato]

I have the same disconcerting sound/movement of the front end on my S6.
Moderate to heavy steering angle while backing up will cause nasty sounding
noises.  Seems to be more of an issue with the summer tires (235/45-17) but
I'll be putting the winter shoes on tomorrow and confirm.  As I recall the
car has always done this to some level but it seems worse lately, but it
could be recollection just isn't as good.  Any little twig, leaf, grain of
sand on the driveway seems to exacerbate it.  I have put the front end on
jacks several times to see what could be loose but everything checks out
fine.  Car is steady as a rock all the way over 100 mph and no vibrations
during braking or otherwise.  I've been thinking that it might be a result
of the torsen in combination with the wider tires and large steering/caster
angles causing some slipping/skipping at the front while in reverse but I'm
grasping at straws because I can't seem to find anything wrong with the
suspension.  I'll see if it goes away with the snows.

If you find a cause please let us know.

Bob

> A few days ago I have accidentally found another problem. I used the
> wife's part of the garage for my car since I was doing some minow work
> on the a4. As I was backing out that huge whale in the tight spot in the
> corner of my driveway I had to cut the steering wheel very sharply,
> almost to the lock position. All of a sudden I hear this BANG! from the
> right wheel and the car shook slightly. That's it. No problem while
> driving or turning forward. No problem while backing up. Only when I
> backed up one more time yesterday while turning the wheels sharply to
> the right did I hear this loud BANG! again. And the car shook sideways
> again, ever so slightly, as if I had rolled over a pebble. Obviously
> somethign is loose. But what?
> The car has very lo mileage. However, the tyres are 255/40/17 on the
> 17x8 heavy Avantgardes with the 32 mm offset. And I think I hear the
> roaring sound of a failing wheel bearing coming from the right hub.
>
> So, listers, what would be the concensus? Take the front suyspension
> out, and replace both front wheel bearings and lower control arm
> bushings. What else? Or?
>
>
> --
> Igor Kessel
> two turbo quattros