[s-cars] EDL weirdness

[Keith Maddock]

At 16:39 09.02.2004, Lee Levitt wrote:
>A quick question...
>
>A couple of times now, I've noticed some odd behavior with the EDL on my S6.
>The car has BIRA System 3 installed.
>
>If I accelerate hard and get significant wheelspin when I'm in snow or on
>ice, the EDL will kick in and almost bring my car to a stop. It feels like
>it's overcompensating for the spinning wheel(s) and braking all the wheels.
>
>Under moderate or light acceleration in the same conditions, I don't really
>notice the EDL.

Lee,

This doesn't sound right to me.  EDL should only be braking on 2 wheels max 
at a time (one on the front, one on the rear).    Some EDL systems can 
brake up to 3 wheels at a time (if one axle is spinning faster than the 
other, and one wheel on the slow axle is spinning faster than the other), 
but I don't think Audi had this in the S-Car's, it's usually not needed on 
a Torsen car .
(BTDT, have calibrated similar EDL on a torsen A4 before...)

Have you ever noticed weird ABS activity?  The first thing I would check 
are your wheel speed sensors!



Cheers,
Keith

keith at maddock.com    http://keith.maddock.com/

93 S4 (mit RS2 + BR upgrades) Portland OR
95 968CS (Ring Tool + Daily Driver) Koblenz, DE
1/8 89 GTI  16V (Spare Ring Toy)  Nürburg, DE