Brake dragging?

[Andrew Lundy]

I just had a similar occurrence on my '91 90.  My slide pins were rusted to
the point were they seized!!  I just replaced my caliper but you could try
pulling the sections apart and inspecting the pins....at least to see if
that's your problem!!  If it is, you could try sanding them clean and
greasing the pins.

I only replaced one caliper; the other calipers pins freed themselves!!!

Your piston could be sticking as well!!!

Good Luck!!
---
Andrew Lundy
fast928 at prodiy.net
90 80Q
91 90
95 90Q


----- Original Message -----
From: "Scott Dudevoir" <greatway at gateway.net>
To: "Q-list" <quattro at audifans.com>
Sent: Monday, October 23, 2000 2:32 PM
Subject: Brake dragging?


> About every couple of years my '85 5000S develops the following
> recurrent symptoms:
>
> Starts with a grinding rubbing sound from the front wheel area timed
> with wheel rotation, the car bogs down, mileage drops considerably, the
> wheels can get untouchable hot from the extra friction, excess brake
> dust builds on the wheels.
>
> My assessment is the front disc brakes are getting hung up and dragging
>  on the rotors.
>
> I have tried a number of repairs to eliminate: system bleed, caliper
> rebuild, master cylinder replacement.
> Thoroughly cleaning all the contact surfaces has seemed to help the most
> in the past, BUT NOT ALWAYS.
>
> Has anyone else had similar problems?
> Any other possible causes of symptoms?
> What conditions might aggravate this?
> Solutions?
> When cleaning the calipers and carrier brackets, any specific
> recommendations, lubricants?
>
> Thanks,
> --Scott Dudevoir
>