kenwilfy@comcast.net writes:

> Yes this is the brake pressure regulator and they seem to rust
> really badly.  I guess it is because they are made of cast iron and
> they are not painted or even plated from the factory.  A new one
> runs around $95 but I am not sure if they are still available from
> VW or not.

A couple of the part sites list them, other show them as currently
N/A.  Mine's so rusty it looks like it is about to crumble to dust.
Would it be advisable to replace, or do they have enough excess
material to tolerate the decay?

Problem is compounded because I bet I'd have to cut the brake lines to
get the old one out.

Allan