RE: quattro generations

[David Eaton <David.Eaton@COMPUTERLAND.CO.NZ>]

well, you started it.

q2.5 as for q2, except for the absence of the abs 'off' switch.  all
audi's from 1992 (?) until 1995 including 's' and 'rs'  models.

q5 the new s6 which dispenses with torsen (too much torque?) and uses
clutch packs on all 4 output shafts (bit like the 959 and nissan gtr).

dave
'95 rs2
'90 ur-q

>-----Original Message-----
>What are the differences for each generation of quattro? 
>
>Lets see...this is what i think they are...
>
>Q1= UrQuattro, 4000Q, 5000Q Which is the open front, center and rear 
>diffs with driver activated center and rear diff locks...
>
>Q1.5= UrQ, 4000Q, 5000Q (85-87?) Which has the newer style dial for the 
>locking diffs and a little bit of mechanical stuff on the lock 
>assembly...but 95% the same as the first...
>
>Q2= 80Q, 90Q, 100Q, 200Q This is the first incarnation of quattro with a 
>center Torsen diff.  the driver has control on locking the rear, but it 
>automatically comes unlocked at 15mph...A unique feature of this system 
>is the ability to turn off ABS, which is unheard of in the automotive 
>world...
>
>Q3= V8Q...This is the system only used on the V8 which to my 
>understanding is an open front with a center and rear torsen 
>system...Therefore, the driver does nothing, the system does it all by 
>itself...
>
>Q4=  A4, A6, A8 This is the newest one with only a center torsen and 
>front and rear EDL differentials, meaning they lock automatically, in 
>conjunction with the ABS assistance and traction control, this system is 
>fully automatic and very advanced electronically..
>
>
>