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1993 S4 Centre Diff Locks BY ITSELF
I have a 93 S4. Unless I accelerate EXTREMELY gently, the centre
differential lock comes on BY ITSELF! Even though it is designed to
automatically disengage at speed (25 mph ?), it doesn't. It's certain that
the diff. IS in fact locked because I can feel the *skipping* tires when
turning. (Of course, the ABS also becomes disabled.)
Sometimes when going over bumps or turning, it will disengage, but this is
not consistent. Replacing the computer module had no effect, and a wiring
check has turned up no faults either. The dealer seems to have little idea
at this point.
Has anyone heard of similar problems or have any ideas?
Thanks to all who might be able to provide some insight.