- and as I'm about to change discs (rotors for the US audience) and pads> I thought I'd try to get the correct grease. Thing is, I can't find> it. I've paid a visit to Halfords (and regretted it- one day I *will*> learn), to no avail.>

So, a few questions:>

1. Is copper grease really bad for the dust seals etc?>

2. Where's the best place to get the grease? Online seems only to throw> up motorcycle stores. If I'm doing an online order, I'll want to order> some other stuff too, which means the motorcycle stores aren't so good.>

3. Do Audi/VW dealers sell it in small quantities?>

4. Is the correct stuff known by any other designation?

do not use copper grease on the pins that the caliper slides on. these have> a ptfe insert in (or should have!) and do not need grease!>

Yes, i knew it was intended for that.>

......but I didn't know that. What you say is borne out by the Haynes> manual (well, the Golf haynes manual- the Audi A3 one isn't out> yet.....) as it doesn't mention greasing the guide pins at all.> Presumably the thing to do is just clean them with brake cleaner spray,> and leave alone otherwise.

it is good practice to open the bleed nipple when you push the piston back.> some abs systems get upset if you don't, and there is a (small) risk of> inverting the seals in the master cylinder.

I'd read that. I've never done it in the past on my old> scirocco/golf/Ibiza­ etc, but the A3 I have now has ABS so it seems> sensible. Apparently the MkIII Vauxhall Astra is particularly prone to> the master seals inverting if you don't use that method.

"Chris Bartram" <news@delete.me.pig­let-net.net> wrote in message> news:Ifwfe.28017$G8­.26303@text.news.blu­eyonder.co.uk...>>

my last car was a J reg mk3 astra. i only read that you should undo the> nipples a few months ago, so it's something that i've never done until > now.> that said, now i know the potential problems you can cause i always do.>