Quattro generations (was: Miata Torsen)

[Lawrence C Leung]

Rear diff on all 89+ 200Qs is vacuum lock by electric switch. The
electric part allows for electric unlocking past 15 MPH. 

LL - NY

On Thu, 25 Jan 2001 12:44:16 -0500 "Peter Berrevoets" <pjberr at home.com>
writes:
>The 200TQ rear diff is a torsen unit, perhaps that is the same with 
>the
>88-91 UrQ?
>
>Peter Berrevoets
>1990 200TQ
>Toronto, Canada
>
>
>> >>    The rear diff lock will auto-disengage at >15mph, so
>> >the system is
>> >>    ABS-compatible.
>> >>    Used on 1988-94 80q/90q/CoupeQ, 100q/200q
>> >
>> >Also 1988-91 ur-quattro.  There's also some confusion about the 
>rear
>> >differential - quite a bit of Audi's documentation refers to the 
>ALZ
>> >as a 'limited-slip differential'.  See ETKA AQS/88/5/25/45-30, for
>> >instance, and the service microfiche.  I can't see _anything_ in 
>the
>> >construction of the ALZ to justify this claim.
>> >
>> >--
>> > Phil Payne
>> > http://www.isham-research.freeserve.co.uk/quattro
>> > Phone +44 7785 302803   Fax: +44 7785 309674
>> >
>