5000CS, leaky steering rack

[Stephen Sherman]

Thanks.

Sounds like M1 ATF is worth a try.  Any ideas on whether it is mixable 
with Pentosin/Mineral oil.  That is can I just add it in, or do I need 
to drain and flush first?


On 1/22/2012 7:35 PM, Ed Kellock wrote:
> I have used Mobil 1 Synthetic ATF in several of my current older Audis (V8s
> &  a 200q20v) and have seen a noticeable reduction in leakage.  In some cases
> it has stopped some leaking altogether.  Since you're at the point where it
> seems terminal, I feel that you may see some improvement and personally I
> would really like to see if so and how much.  M1 Synth ATF is surely not as
> cheap as mineral oil, but if it helps slow the leak it must surely be
> cheaper than Pentosin in the short run and possibly cheaper than rack
> replacement in the longer run.
>
> Ed
>
>
>