1990tqa 200

[Ed Kellock]

Yup.  BTDT.  It's actually quite easy.  Under the rear seat,  in about the
middle and toward the front edge of the seat, there's a controller box which
has a wiring connector and some vacuum lines.  In the wiring connector
there's a blue/white wire.  That's the speed signal wire.  Get rid of it and
no auto unlock on the rear diff.  I did it the hard way and removed the
connector from the block altogether so it could be replaced later.  It could
also be cut and respliced later if that "feature" was wanted again.

Ed

> -----Original Message-----
> From: quattro-bounces at audifans.com 
> [mailto:quattro-bounces at audifans.com] On Behalf Of Vittorio Bares
> Sent: Saturday, March 17, 2007 9:57 AM
> To: quattro at audifans.com
> Subject: 1990tqa 200
> 
> 
> Hi - all:
> 
>  
> 
> I just bought this car and I'm starting to learn a little 
> about it. Apparently Audi thought it would be a good idea to 
> put a speed sensor on the locking diff, I assume in order to 
> preserve the mechanics in case of cockpit error?
> 
>  
> 
> We just had  a snow storm here in NH, a good one :-), had a 
> ball last night (in the WRX)...however, in getting the Audi 
> out of the driveway this morning, after setting the diff 
> lock, it quickly became apparent how useless it can be as you 
> start to spin up the tires. As your wheel spin surpassed 
> 15mph, click - off goes the diff lock :-(.
> 
>  
> 
> Has anyone deleted the speed sensor auto-off feature? Beyond 
> the issues in running w/diff locks on, on tarmac for extended 
> periods, are there any negatives that might result in 
> deleting the auto-off feature?
> 
>  
> 
> Thanks !
> 
>  
> 
> Vittorio -
> 
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