donp

Anybody had install problems with a DTS on a 2002 S4?

I removed the DTS from my 2000 S4 and am now preparing to put it on my 2002. So, I went to get new subframe bolts (since the bolts are torque-to-yield and should not be reused) only to find that the part number for 2002 is different from 2000-1. They have to special order the bolts.

Hmmm. Just wondering what has changed. AWE doesn't know of any design change.

I'll have the parts on wednesday to compare with old S4 bolts.

P. Bauer

why do the instructions say to re-use these bolts?

donp

The subframe bolts are not reusable (see the service manual). The dealer is supposed to replace the bolts any time they loosen the cradle bolts (mine does). Proper torque is some number (which I can't rember at the moment) plus 1/4 turn. If you reuse the bolts they've already been stretched when they were originally installed so the installed torque will be wrong if you use them again.

George @ BostonAudi

AWE says to reuse those bolts.

donp

<center><img src="http://pictureposter.audiworld.com/12322/s4bolts.jpg"></center><p>
See link for details<ul><li><a href="https://forums.audiworld.com/s4/msgs/919784.phtml">Previous post</a></li></ul>

George @ BostonAudi

There are a lot of DTS and UUC bars out there that are on cars that didn't have those bolts replaced.

donp

Bolts torqued to improper levels.

Nick Gustas

body.

sucked, a lot.

A new bolt probably would have stretched properly and not killed the threads...


or not, who knows? I guess I just got unlucky. Only cost I think $25 to have my mechanic fix it.

George @ BostonAudi

Maybe I'll order a set and replace them...

Did you replace just the three smaller ones, or that big-*** one too?

donp

The big one is the one that should be replaced. The small bolts are not torque to yield.