[s-cars] subframe alignment

[Konstantine Bogach]

Hi listers,
diver side wheel on my S4 '93  rubs the mud flap when it turning in 
reverse.  I found that driver side wheel is ~10mm  closer to the mud 
flap than passenger side wheel.  As I see it it can be only subframe 
alignment issues.  Anything else? 
 So,  I am thinking about aligning the subframe.  Procedure in ELSA (I 
think Bentley has the same one) says: "... align subframe assembly  to 
be cocentric with bolt and washer assembies (those are bolts which hold 
rear subframe mounts) by sliding sidways in slots on rear subframe 
mount".   Do mounting points give some freedom in front-to-rear 
direction?  I would really appreciate any BTDTs?
Tomorrow I might stop at dealership and try my luck asking someone to 
answer this question.  

Thank you.
Konstantin.